11 best electricity usage meters

• EASY TO USE: Counts consumption by Kilowatt-hours, choosing from 5 independent keys to quick access different power parameters
• REFINED ACCURACY: Built-in high precision current sensor. Ensures you the best accuracy-Class 1.0 with 0.01W, 0.1V and 0.01A resolution
• BACK-LIGHT & MEMORY: Clear backlight and large digital numbers, with circuit memory for cumulative kilowatt-hours & elapsing time
• PORTABLE KILOWATT METER: Compact size with start detection 0.20W, you can virtually monitor most standby or working power dissipation
• BUY WITH CONFIDENCE: 1-YEAR Warranty by Poniie; Full ABS fire retardant material housing; Note: do not compatible with solar power inverter

User questions & answers

Question:	Is the amp reading a cumulative amount or the current amps being drawn
Answer:	Being drawn-instant reading
Question:	If it is plugged for 9 hours, and ct will tell me 9hr and kwh 0.25, does it means that in 9 hours it has used 0.25 kwh or i need to multiply 0.25 x
Answer:	Hello, it means it has used only 0.25kwh in 9h.
Question:	Can this device be used to help determine how much power a refrigerator is pulling
Answer:	Yes, it's easy to determine the power consumption of a refrigerator by EC--kW.h. This parameter also has a power-off memory function.
Question:	Can this truly be used for 50 hz? Sincr all others only support 60 hz
Answer:	Yes, it can be used for 50Hz power.

Product features

Save on Your Electricity Bills

Now you can counts power consumption by the kilowatt-hours and assess what appliances are actually worth keeping plugged in. You are able to check the quality of your power by monitoring voltage, amp, frequency and power factor. And you will know if it is time for a new refrigerator or if that little "vampire" needs to be killed down from the outlet. PN1500 can help you reduce your power bill and find power-wasting appliances so you are able to decide whether it is worth keeping.

Technical Specification

Input Power: 100~140V 60Hz

Maximum rated current: 14A

Maximum power: 1500W

Measurable range: above 0.20W

Display resolution: 0.01W, 0.01A, 0.1V

Measurements: Watts, VA, Current, Voltage, Frequency & PF, Cumulative Time(CT), Electricity Consumption (EC)

Backlight function: Stay ON ( 10s Auto off can be set)

Accuracy standard: Class 1.0

Case Material: Fire retardant ABS

Product dimension: 3.74*1.85*1.57 inches

Easy to Use

• Toggle keys for easy accessing power parameters
• Easy to read screen & large display numbers
• Hold Over Circuit Memory for CT and EC
• Overload Indication

Designed for Most

This device adopts dedicated electricity metering chip in combination with a high precision current sensor, which makes it a superb tool both for households and electricians. it can help reducing your bill and find power-wasting appliances so you are able to decide whether it is worth keeping.

Multi-Functional

Whether to monitor your home appliances or check the quality of your power by monitoring voltage, amp, frequency and power factor. PN1500 works like a charm. It is easy to know if it is time for a new refrigerator or if that little "vampire" needs to be killed down from the outlet.

User Notes

Only Hold Over Circuit Memory for CT and EC-kwh. CT means the elapsing time when this unit is powered on.

Back-light can be set 10s auto off. Under current (A) display, press and hold 'Set' to enter setting. Press 'Up' or 'Down' button to select 'Off'.

Product description

Empowers You to Save Hundreds on Electric Bills

Electricity bills are rising. Now you can cut down on costs and find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt, and it will assess how efficient they really are. The large LCD display counts consumption by the kilowatt-hour, the same as your local utility. You can calculate your electrical expenses by the day, week, month, even an entire year. Also check the quality of your power by monitoring voltage, line frequency, and power factor. Now you will know if it is time for a new refrigerator or if that old air conditioner is still saving you money. Kill A Watt can help you reduce your power bill and will help find power-wasting appliances so you are able to decide whether it is worth keeping them plugged in. For standard 115 VAC appliances only, 15 amps maximum, 125 VAC maximum.

Find Out How Much Electricity You're Using

The U.S Department of Energy reports that 20% of our electric bills come from items that are left plugged in when they are not in use, or items that are in standby mode. With the Kill A Watt P4400 we can monitor the energy eaters in our homes and cut down our electric bills at the same time. Plug whatever item you want into the device and it will tell you the efficiency of that item by displaying the kilowatt per hour. This device will help you determine which items are costing you the most to run. The Kill A Watt also calculates voltage, line frequency, current, and power factor. You can calculate your electric bill before you even receive it from the electric company.



Test The Quality of Your Home's Power



But measuring appliance consumption is just the tip of the iceberg. Because it can monitor voltage (Volt) and line frequency it can also test if an outlet is working, or evaluate the quality of the electrical power provided by your utility company. It can detect voltage drops around the house, help to predict brownout conditions or to make sure a new home's outlets are in working condition before escrow closes.



About P3 International



Founded in 1987, P3 International is a privately owned manufacturer of solution oriented consumer products. For the last twenty years they have strived to develop products that are easy to use and ahead of their time. Thanks to their customer-centric attitude and support from their clients, they have experienced steady growth over the past decade.



They are committed to manufacturing high quality products that appeal to a variety of different people, from the environmentally conscious to the more technologically-minded consumer. With this philosophy driving them they are always looking for innovative new products which they can offer their customers.



Their unique products have garnered much attention, in particular the Kill A Watt. Reviews of P3 products have been featured in newspapers such as The New York Times and The Wall Street Journal.

Technical Specifications

Accuracy: +/- 0.2%

Input Power: 115 volts AC, 60 Hz

Max Current: 15 amps

Max Voltage: 125 volts

Max Power: 1875 VA

Dimensions: 5.1 inches long x 1.6 inches thick x 2.4 inches wide

Approvals: ETL (c), ETL (us)

Origin: China

Manufacturer Warranty: 6 months

• Choose from the Kill-a-Watt's four settings to monitor your electrical usage
• Monitor your electrical usage by day, week, month, or year
• Features easy-to-read screen
• Electricity usage monitor connects to appliances and assesses efficiency
• Large LCD display counts consumption by the kilowatt-hour
• Calculates electricity expenses by the day, week, month, or year
• Displays volts, amps, and wattage within 0.2 - 2.0percent accuracy
• Compatible with inverters; designed for use with AC 115-volt appliances

User questions & answers

Question:	Hi, is this unit able to capture peak current draw? I want to see if my audio amplifier ever gets close to tripping my breaker
Answer:	This will only plug into a 120 VAC outlet. The standard 120 VAC outlet in almost all homes is only rated 15A continuous duty, but can take more for a second like when a room air conditioner compressor starts up. This is probably following those same rules. If the wiring is 12 gauge or thicker, it can be hooked to a 20 amp breaker even though all of the outlets in the average house are rated 15A, at least in most states. The reality of the matter is that wiring and outlets can always take somewhat more than the ratings and everything is oversized for safety. But is is always considered unsafe to plug in any device that uses more than 15 amps into a typical house outlet. An exception is commercial outlets that fit both home devices and heavier duty commercial device plugs and those outlets are usually rated at 20 amp. Those outlets are more common in businesses and uncommon in homes. An air conditioner or commercial refrigerator that uses more than about 10 continuous amps will normally be a 240 volt appliance and require different type of outlet designed for 240 volts, same is true of typical electric clothes dryer and this device would not adapt to those.
Question:	Will this work with two prong (non-grounded) outlets
Answer:	This device, the P4400, will reset all of its timed measurement values to zero if power is lost or the device is unplugged. The P4460 has "non volatile" memory, using a battery to provide the necessary voltage to power the (S)RAM memory, which means that it will not lose the data if power to the 4460 is lost. The P4460 also will let you input the cost per KWH from your provider to calculate the cost to operate the appliance over a week, month and year (assuming that your use is the same during the extrapolated period as it was during the measurement period). For me the data retention feature is well worth the extra $4 since I want to keep track of the energy used by a window air conditioner which will vary by the outdoor temperature, the sun hitting the building, the humidity, etc.
Question:	most of my outlets are 20 amps or more, the killawatt is only 15 amps does that make a difference in calculations, the garage is 40 amp
Answer:	Hello, the correct wire is typically referred to as 10/3 with ground, but yes 10/4 would be the correct amount of wires. Reliance Controls videos have the 10/3 with ground used in install videos. Any other video done by others may not have the correct wire.
Question:	what is the difference between the p4400 and the p
Answer:	Hello and thanks for your question! The PB30 inlet box is just a plug for a generator cord in an outdoor rated enclosure. It is used to connect a generator cord and then bring the wiring into a building to connect to what should be a transfer switch or device. The wiring from the PB30 brought inside doesn’t have to connect to a transfer switch for the power to be utilized, but every state law requires a transfer device to connect generator power to. Hope this helps!

Product features

Kill A Watt EZ Power Monitor

Calculate your homes cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring Voltage, Line Frequency, and Power Factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money. With the amazing Kill A Watt EZ you’ll know 'Watts' killing you.

Kill A WATT EZ Power Monitor

With the P4460 you can easily identify which appliance in your home is costing you the most money. The Power Monitor also allows you to enter your Utility providers cost of electricity so you can monitor and pinpoint what each appliance is costing you.

Founded in 1987, P3 International is a privately owned manufacturer of solution oriented consumer products. For the last twenty five years we have strived to develop products that are easy to use and ahead of their time.

We are committed to manufacturing high quality products that appeal to a variety of different people, from the environmentally conscious to the more technologically minded consumer. With this philosophy driving us we are always looking for innovative new products which we can offer our customers.

• Electricity usage monitor: Monitor is the killer of the high-cost energy appliance, helping you lower power consumption and save money.
• Digital LCD Display: Large clear LCD display for easy reading, the screen size is 47cmx60cm.
• Various Parameters: Power(W), Energy (kWh), Voltage, Amps, Power Factor, Cost and Minimum & Maximum Power, ideal for energy consumption monitor.
• Overload Protection: Once the whole power exceeds the rated power of monitor, LCD will display "OVERLOAD" with booming noise to remind the user
• Built-in Battery:With 3.6V rechargeable battery(NI-MH), It can store electricity. which allows meter to be moved and viewed without losing readings.

User questions & answers

Question:	Where can I download the user manual? The link on your product page is not working
Answer:	Mine came with a user manual such as it was. Take a few minutes and look on YouTube;it will be explanatory quickly! Good luck!
Question:	Will this meter read the wattage im putting back into the grid
Answer:	No.
Question:	How do you reset the usage? I don't need to reset the cost Kw/h, just the running totals
Answer:	Hello, this usage will be reset all, and then you could set the cost again, if you have any problem when reset, please tell us the details, you could send the email to [email protected], we will be surely responsible to this problem. thanks
Question:	Does it for remote by a computer or cell phone?will it work with 220v
Answer:	Negative. Most of these devices are rated up to 1875 watts. That's 125 volts times 15 amps. If your electrical service panel is up to code, the 15 amp breakers in it should flip off at 1440 watts. That's 80% of 1800 watts (120 volts times 15 amps). I have one window unit wired for 20 amps...that's 1920 watts safely. I have used these devices with my 20 amp outlets and but please don't make a habit of using it continuously, it will get hot and potentially start a fire. There are 220V meters out there but I'm not familiar with any of them. Take care!
Question:	Is this model 220v (Non US) AC compatible? If not, which model is? Thanks in advance
Answer:	This is a 120-volt meter. I recommend that if you want a plugin meter than can handle 240 volts you look one for the appropriate electrical receptacle on the front. This one clearly has a standard 120-vold outlet receptacle.
Question:	does this work on 220v 60hz house outlet
Answer:	According to product specifications Line Frequency range is 47.0 - 63 HZ. If your outlet is configured to accept the P4460 you should be able to use it. Before you buy you may want to ask the manufacturer this question.
Question:	Can it be set for a period of time (such as 24 hours) and record usage only then
Answer:	Yes, this records the total power used by the device whether it is on or off or any mix. You just need to go to the screen kwh used. record the beginning # and at the end of time period (say 24 hours) record the end #. that is how many kwh it used. I used several of these for months to record the A/C use in our shared apt and paid the landlord for the a/c used so they don't complain about my electricity used. great device. now however, my apt has a 20a a/c wall unit. while you could get converter to regular 3 prong, not sure if this unit will go to 20 amps.Others who said no are simply ignorant of this devices menu. It ALSo shows, when on watts menu, the watts used when a device is running, or is off. so you can see how much your a/c or toaster oven or giant screen tv uses when on, or off.It also keeps the power kilowatt hours used even if unplugged or power goes out in its internal memory. so you can simply record the kilowatt hours at the begin of a month, then at the end of the month, subtract and multiply by your cost of electricity for the total $ / month the device uses.The dork who was our landlord at the time thought his electric water heater for tea was less expensive to use than nuking a cup of water for a minute to heat it up in the microwave. popped this device on it and they were almost identical in total power used to heat a cup of water.The same idiot who was complaining about this left his rear projection tv on when he wasn't around, and they use alot more electricity than today's flat panel screens.If you want to record the power usage of some device over time, you'll want to plug this device into a short extension cord. if you plug it directly into the wall then you have to lie down on the floor to read the kilowatt readings. I just put the readings into a spreadsheet when I was recording monthly electricity usage.
Question:	To how many decimal places does this one display for Watts
Answer:	This EZ model does NOT display how many Watts you device is pulling... It displays how may kwh have been used thus far, to the 1/10th decimal place. So, when you first plug something in is shows ZERO, since not enough time has passed to show kwh used yet. This is a HUGE feature left off this device. For me, I want to plug something in to a meter like this and be able to instantly see how many Watts the device uses, and this EZ meter version does not do that.

Product features

Kill A Watt EZ Power monitor

Calculate your homes cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring Voltage, Line Frequency, and Power Factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money.

Kill A WATT EZ Power Monitor

With the P4460 you can easily identify which appliance in your home is costing you the most money. The Power Monitor also allows you to enter your Utility providers cost of electricity so you can monitor and pinpoint what each appliance is costing you.

About P3 International

Founded in 1987, P3 International is a privately owned manufacturer of solution oriented consumer products. For the last twenty five years we have strived to develop products that are easy to use and ahead of their time.

We are committed to manufacturing high quality products that appeal to a variety of different people, from the environmentally conscious to the more technologically minded consumer. With this philosophy driving us we are always looking for innovative new products which we can offer our customers.

7 Different Display Modes:

Mode 1: Time/Watt/Cost Display

Mode 2: Time/Cumulative Electrical Quantity Display

Mode 3: Time/Voltage/Frequency Display

Mode 4: Time/Current/Power Factor Display

Mode 5: Time/Minimum Power Display

Mode 6: Time/Maximal Power Display

Mode 7: Time/Cost Display

1. ＊ With electricity expense calculating, you can monitor which appliance cost the highest energy and how much your standby appliances cost. In this way, you can determine how to low your power consumption.

2. ＊ With overload protect function, when the power socket connects the load over 1650W, LCD on the second will flicker.

3. ＊ If you receive the item and it do not power on or display, please plug it into the AC outlet for 10 minutes and press the reset button to reset.

Specifications

• Operating voltage: AC 120V
• Operating Frequency: 60Hz
• Wide voltage range: 110V-130V
• Operating current: 15A Max
• Wattage display: 0W-9999W
• Voltage display range: 0V-9999V
• Frequency display: 0Hz-9999Hz
• Current display: 0.0A---15.0A
• Cost display range: 0.00cost/kWh---99.99cost/kWh
• Timing display range: 0 second---9999 days
• Total kWh and cost display: 0.000kWh---999kWh,0.00cost---9999cost

Package listing

• Power meter *1 (US plug)
• User manual*1

• SENSE SAVES: Sense saves you energy and money by providing insight into your home's energy use and activity. NOW SUPPORTING TIME-OF-USE RATE PLANS.
• SEE WHAT’S UP. KNOW WHAT’S ON: Track how much electricity you’re using, what time your kids got home, or when someone leaves the basement light on. Sense identifies patterns in your energy use to help your family be more efficient, informed, and secure.
• MONITOR YOUR HOME’S ENERGY USE FROM ANYWHERE: Real-time data through our iOS, Android, and web apps.
• AVOID DISASTER: Set custom notifications for critical devices, like your sump pump, well pump, or flat iron.
• MEETS RIGOROUS SAFETY STANDARDS: Sense’s components and system have been designed and ETL/Intertek certified for installation and operation inside the electrical panel.

User questions & answers

Question:	Can the app on my wife ios phone and my android phone be simultaneously logged in to the app
Answer:	Yes it will that is what I use mine for. It gives me an AC reading right between the Grid Ready inverter and the power grid.
Question:	Does the app function when outside the home? Ie. Will I be able to see real-time data for my home while away at work
Answer:	The P4400-vp can be shipped on international orders. Great Britain and France, even the Island of St. Martin Dutch side (120VAC) and St. Maartin French side (240VAC). have significantly different power from the US. The French and Great Britain use power 240VAC "Phase/ or live leg to ground" instead of the US "live leg to live leg" for 240VAC. Even though this unit is not usable for 240volt it is cleared for international use since the unit tests on phase to ground 120VAC and this is what we use in the US. It would appear that this has to do with the way the ground (round plug) and neutral are utilized in the device.
Question:	does it sum up power usage for a period of time, like every month
Answer:	What I understand of resolution on this context is: the increment steps of the measure. A 10 resolution will measure either 0, 10, 20, 30 .... but never a number in between.
Question:	Is it truly worth 300 bucks
Answer:	Not really. If you are sure which range is best you should start high and work your way down until you get the accuracy you need.

Product features

Save Energy and Money

Understanding how much energy your home is using, when and where, empowers you to find savings. Only Sense gives you the tools to break it down.

New as of January 2021: if you're on a time-of-use rate plan, you can input your rate zones for more accurate billing and historical costs. You can even set push notifications to alert you when entering peak zones.

See what’s up. Know what’s on.

Get a view into your home you can’t get with any other energy monitor. See when the garage door opened, the television turned on, or the dryer finished its cycle.

• Machine learning device detection finds individual devices in your home over time.
• Detailed information on when and how a device is functioning.
• Integrates with Amazon Alexa, Google Assistant, Philips Hue, TP-Link Kasa HS300, and Wemo Insight smart plugs to aid in device detection and control.

Avoid Disaster

Sure, it’s convenient to know when certain devices turn on and off, but it may just save your home, too. Heavy rains? See if your sump pump is running, or running too much. Think you forgot to turn off the oven? Set an alert to inform you if it’s been on for over an hour.

The Hardware Matters

The Sense monitor was designed for the highest level of measurement accuracy and is ETL/Intertek certified for safe operation inside the electrical panel.

Install

The Sense monitor installs in your electrical panel. (We recommend you have an electrician do that.)

Read

The monitor reads the electrical current being drawn and sends the data to the cloud.

Analyze

Sense analyzes that data and sends it back through the app on your phone or desktop.

Learn

Over time, it learns what's happening in your home, detects devices, and provides information on your energy use.

Dedicated circuit monitoring

Track up to two 120V or 240V circuits. It’s the best way to track devices like your HVAC system, EV charger or variable speed pumps.

400A split-service

Whole-home monitoring for homes with split-service 400A electrical systems, more common in newer, larger homes.

Standby generators

If your power is interrupted, Sense can tell you when your back-up generator takes over and how much energy the home is using.

Solar monitoring

Solar monitoring for homes that already have Sense, but have recently added a solar power system.

• INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. INSPECT YOUR ELECTRICAL PANEL for compatibility. Panels with access only to busbars will need flexible sensors available from the emporiaenergy website. Includes DIY instructions, though a professional electrician is recommended.
• 24/7 ENERGY MONITORING: Monitor your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. Light commercial 3 phase option available as a separate bundle.
• APPLIANCE MONITORING WITHOUT GUESSWORK: Comes with up to sixteen (16) 50A sensors to accurately monitor your air conditioner, furnace, water heater, washer, dryer, range, etc.
• LOWER YOUR ELECTRIC BILL: Gauge real-time spending and get actionable notifications to understand where you can save costs.
• REAL-TIME ENERGY DATA: Vue connects to 2.4GHz WiFi to monitor energy use with iPhone / Android app. Vue sensors provide 1-second data and are accurate from ±2%. The Vue is UL and CE Listed for your safety.

User questions & answers

Question:	Can this be set up to use and view on a desktop computer or does a person have to have a cellphone
Answer:	You need to add some info about your spa before you can get an absolute answer. But according to the rating tag on this unit it can handle 15 amps input and 15 amps output. That means it can handle a load of 15 amps at 120 VAC. If your spa is over 15 amps, the answer is no. 15 amps at 120 VAC = 1800 watts. If you spa is at or above 15 amps, or 1800 watts, don't us it on the spa. To be safe and 100% accurate, refer to the spa user manual.
Question:	Does this work with a 240 line
Answer:	It's not made for plugging into the grid in the manner you describe. Its design is intended to measure consumption of individual appliances up the monitor's maximum current/power rating. I have used such a device on a power strip to measure multiple appliances at once, but kept total draw of loads within the monitor's limits.
Question:	Any monthly app fees
Answer:	Don't need a pen pushing where it says reset
Question:	Is there a subscription needed
Answer:	I recommend that you call the company to confirm your question.

Product features

Turning Power Into Knowledge

Emporia has developed the next generation of the Vue Energy Monitor. Committed to bringing the best value as affordable possible, the Vue provides everything you need to monitor your entire home's energy usage in real time. See how much electricity your home is using anywhere, anytime.

Monitor Individual Circuits without the Guesswork

Add individual 50A sensors to your Vue to monitor up to 16 individual circuits — providing accurate energy use for the appliances and equipment that is important to you. No guesswork. No trying to discern energy signals from background noise. Just simple, easy, and accurate insight into your home. 50A sensors are sold separately and also sold in bundles with the Vue.

Measure Solar Net Metering without Extra Hardware

Solar net metering is built right into the Emporia Vue. The simple Emporia iOS and Android app will show when and how much electricity you are consuming and when and how much excess energy you are producing back to the grid — giving you keen insight into the impact of your solar panels as they relate to your energy use.

Installs in the Electrical Circuit Panel of your Home

The Gen 2 Vue installs in your home's electrical panel using CT sensor clamps that go around your mains and the other circuits you wish to monitor. DIY instructions included, but a professional electrician is recommended. The Vue system is designed for field installation in a switch enclosure as per 312.8(B) of the 2017 NEC regarding Power Monitoring Equipment.

Do You have Metal Bus Bar Mains in Your Panel?

Our Flexible Current Sensor solution is now available on the EmporiaEnergy website. These current sensors are meant to replace the 200A main sensors that ship with Gen 2 Vues. They employ a bendable Rogowski coil with a 1.4” (36mm) opening that can fit around most bus bars or into tight spaces where a standard current sensors clamp cannot fit. Installing the Flexible Current Sensors is still dangerous, and Emporia highly recommends that installation be performed by a licensed electrician or other qualified professional.

Add Emporia Smart Plugs to Your Vue

Emporia Smart Plugs (sold separately) can be added to your Vue system to help you to not only monitor the energy of lighting and small appliances, but to also set timers, schedules, and turn them on and off from anywhere, any time with the Emporia app.

• Know Which Appliances Are Driving Up Your Power Bill: Plug this electricity meter into your appliances to see their true efficiency. Our meter can measure voltage, wattage, current strength, CO₂ usage, electricity costs in kilowatts per hour, and more — in real-time. Now you’ll know if it’s time to replace that old dryer with a new energy-efficient one.
• Protect Your Valuables From A Power Overload: This electricity meter comes with overload protection, which notifies you when the unit is drawing more electricity than a circuit can safely handle. “Overload” will blink on the screen to warn you that the appliance needs to be unplugged to prevent overheating.
• Large Display Makes For Easy Reading: Unlike other power meters out there, ours features a large LCD screen with clear-digit display, making it extra easy to view your real-time electricity usage and cost readings — even when you’re not close to the meter.
• Battery Backup Saves All Readings During Power Outage: With a built-in battery backup feature (two 3.6V batteries included), this power meter will save your electricity usage readings, cost readings, and all settings during the event of a power outage.
• Easy-to-use Reset Button: If an abnormal display appears on the power meter’s screen or the buttons don’t respond, you can quickly reset the device by pressing the small “Reset” button, located between the “Energy” and “Cost” buttons.

User questions & answers

Question:	Can I use this with my porable spa
Answer:	NO it does not come fully serrated. But, it is extremely sharp.
Question:	Can this unit monitor input into the grid, as in, i'd like to monitor the performance of a grid-tie inverter, plugged into this unit, into the wall
Answer:	I haven't use it for a neck knife because of the size.
Question:	How to reset the power consumption reading (kWh) in the third rank
Answer:	Thank you for contacting Top Quality Knives. Please see full spec's of the knife below. Again thank you for contacting Top Quality Knives and your business would be very much appreciated. Model Number: FB09GP2Country Of Origin: TaiwanOverall: 7.88" (200mm)Handle: G-10Blade: 4.12" (105mm)Edge: 3.54" (90mm)Blade Steel: CTS BD1Lanyard Hole: YesSheath: BoltaronHandedness: Universal CarryWeight: 3.9oz (111g)Edge Type: PlainEdge
Question:	What is the maximun power that I really can use without blow? Still 1875w
Answer:	made in Taiwan.

Product features

BALDR BA3091-2 POWER SOCKET

• Monitor closely your energy cost with this Power meter.
• Simply plug it into a wall socket and then plug in your appliance to assess how energy efficient they really are.
• You can monitor which appliances are the killers of the high cost of energy to reduce the power bill and carbon emissions.

TWO DIFFERENT TYPE OF POWER SOCKET

SINGLE TARIFF: Set one tariff

DUAL TARUFF: Set two different tariff in different period

OVERLOAD PROTECTION

Overload Power: The initial parameter of overload is1875W, you can set the max load power of this power meter by yourself. When current load power goes beyond max data the word 'Overload' on LCD will keep blinking to warn the users

6 DISPLAY MODES

• Accumulative Time / Voltage /accumulative power
• Accumulative Time/Current / Cost
• Accumulative Time/ Frequency / Day
• Accumulative Time / Power Factor / CO2 Volume
• Accumulative Time / Overload Power / Not Display
• Accumulative Time / Power Factor / accumulative cost

Technical Parameters

Voltage: 125Vac/60Hz

Max load current: 15A

Max load power: 1875W

Working Voltage: 110-130Vac

Voltage Frequency: 45-65HZ

Working Current: ≤16A

Working Temperature: 0-50°C

Product Measurements

Net Weight: 7oz(200g)

Gross Weight: 9.5 oz (270g)

Item Size: 5.78’’L x 2.91’’W x 1.33’’H

Package Size: 80x80x160mm(3.15"x3.15"x6.3")

Color: White

Package contains:

1xBA3091-2 Power Socket

1xInstruction Manual

Powered By: LR44 lithium battery (Included)

Battery Backup

Built-in Battery (3.6V batteries ) backup, allowing meter to store the total electricity and memory setting during power outage.

If an abnormal display appears or the buttons produce no response, the device needs to be reset. Simply press the Reset button to reset it.

WIDE APPLICATION

Product description

Poniie PN2000 High-Power Electricity Usage Monitor

This device adopts dedicated electricity metering chip in combination with a high precision current sensor to monitor your electric equipment in real time, which make it a superb tool both for households and electricians.



Save on Your Electricity Bills

Simply connect to a standard outlet and then plug a device in to this unit. Now you can counts power consumption by the kilowatt-hours and assess what appliances are actually worth keeping plugged in. You are able to check the quality of your power by monitoring voltage, amp, frequency and power factor. And you will know if it is time for a new refrigerator or if that little "vampire" needs to be killed down from the outlet. PN2000 can help you reduce your power bill and find power-wasting appliances so you are able to decide whether it is worth keeping.



Product Features

-Large LCD Back-light Display

-With 1 Ft. Heavy-duty Extension Cable

-Full ABS Fire Retardant Housing

-Comfatable Hard Press Buttons

-Hold Over Circuit Memory for CT and EC

-Overload Indication



Specification

Input Power: 110-125V 60Hz/220-240V 50Hz

Maximum rated current: 16A

Maximum power: 1760W(@110v)-1840W (@115V)

Measurable range: above 0.20W

Display resolution: 0.01W, 0.001A, 0.01V

Measurements: Watts, Current, Voltage, Frequency,

Cumulative Time(CT), Electricity Consumption (EC) and Power Factor (PF)

Backlight function: 10s Auto off (Stay ON can be set)

Accuracy standard: Class 1.0

Power dissipation: under 1.00W

Case Material: Fire retardant ABS

Product dimension: 4.72*2.36*2.19 inches



1-YEAR Warranty by PoniieDirect!



Package Contents

1x PN2000 Power Monitor

1x 1 Ft. 14AWG Extension Cord.

1x User Manual

• HIGH POWER WATT METER: Counts consumption by Kilowatt-hours, with high-power tolerance rated at Max.16A, compatible with 220v ac
• REFINED ACCURACY: Built-in high precision current sensor. Ensures you the best accuracy-Class 1.0 with 0.01W, 0.01V and 0.001A resolution
• BACK-LIGHT & MEMORY: With wide view angle, clear backlight large LCD Display and hold over circuit memory for cumulative kilowatt-hours
• PROFESSIONAL KILOWATT METER: Start detection 0.20W, you can virtually monitor standby or working power dissipation of all your electronics
• BUY WITH CONFIDENCE: 1-YEAR Warranty by Poniie; full ABS fire retardant material housing and comes with 14AWG heavy duty extension cord
• EASY TO USE: Checks the quality of power by Watts (active power), Current (true RMS), Voltage (true RMS), Frequency (Hz) and Power Factor
• CUMULATIVE TIME: CT only means the run time of the appliance, not the elapse time. It is a parameter to assess your appliance's working performance
• WHAT YOU GET: 1x PN2000 Power Usage Monitor, 1x 1 Ft. Heavy Duty 14AWG Extension Cord. 1x User Manual; 1-Year Warranty by Poniie; FCC certified

User questions & answers

Question:	Can I use it on a gas dryer that takes 30 Amps for a split second to start? I know it runs below 8 amps once started
Answer:	Its a crap shoot as to whether this meter can handle the surge current of start up. Maybe itll work once, twice, a few times. But eventually it WILL fail. Id recommend one of those add in power monitor displays with a split core transformer that is clamped around the input hot line to sense current. For example, a CrocSee CRS-022B. Much, much safer. And can sense up to 100A!
Question:	can be used connecting 220 Volts at 60 Hz
Answer:	Yes, this item is designed for 110-220v, 50-60hz, AC power.
Question:	Can you plug space heaters into it safely
Answer:	It depends, the max. wattage rating of the PN2000 is 1760w @110v or 2000w @125v (16 amps). As long as your space heater rating is lower than this, it should work. Most space heaters have a max. output of 1500W, so you should be good to go. Note: Due to the large start-up amps of space heater, though device has abilities to deal with it, we still recommend not to use the device near the max rated specs (in most cases, the true RMS Current will be around 15A) for a long time to avoid any unexpected damage or accident. And please kindly know that the inner and outer device material is fireproofing. If device is over used or exposure to excessive heat, it may cause a melt incident but it won't start a fire. Still, you need use this device carefully to avoid any fire hazard.
Question:	Does it tell you how much electricity has been used in 24 hours and the cost of usage
Answer:	Yes, it will give a total usage over any time period (loose power circuits will be fine, consumption kWh will be kept in memory). So you just need to let it run 24 hours and check the Electricity Consumption (EC). Regarding the cost of usage, you have to do the math. Here gives you an example: Let's say your billed KWH is 0.07 and the distribution charge is 0.04. Then the KWH charge $0.07 + distribution charge $0.04 = $0.11 per Kilowatt Hour(kWh) usage. So if your device is using total 2.4 kW-hrs(EC) per 24 hours (which is equal to 100 watts in one hour), then you are paying $0.11 per kWh * 2.4 kilowatts per day = $0.264 for each day of use. Hope this explains it better.

Product features

Save on Your Electricity Bills

Electricity bills are rising. Now you can count power consumption by the kilowatt-hours and assess what appliances are actually worth keeping plugged in. Simply connect to a standard outlet and then plug a device in to this unit. You are able to check the quality of your power by monitoring voltage, amp, frequency and power factor.

Kindly Reminder:

Back-light can be set to stay on. Under 'CUR' display, press and hold 'Set' to enter setting. Press 'Up' or 'Down' button to select 'On'.

Technical Specification

• With Heavy Duty Extension Cord.
• Meter Accuracy: Class 1.0; 0.5%-1.5%.
• Input Power: 110-125V 60Hz/220-240V 50Hz.
• Maximum Current: 16A
• Maximum Power: 1800W (@120V)
• Measurable Range: above 0.20W
• Resolution: 0.01W, 0.001A, 0.01V
• Measurements: Watts, Current, Voltage, Frequency, Power Factor, Cumulative Working Time (CT), Electricity Consumption (EC-w/Memory)
• Backlight Function: 10s Auto off (Stay On can be set)
• Dimension: 4.72*2.36*2.19 inches

Unique Features

• Large LCD back-light display
• Wide easy reading view angle
• Full ABS Fire Retardant Housing
• Overload Indication Function
• 16A High-Power Watt Meter

Designed for Most

This device adopts dedicated electricity metering chip in combination with a high precision current sensor, which makes it a superb tool both for households and electricians.You can even use this as a monitor to find the power consumption each time when you do a home charging for your electric car.

User Notes

Only Hold Over Circuit Memory for CT and EC-kwh. CT only means the run time of your appliance, not the elapse time. It is a metric to assess your appliance such as freezer etc.

Product description

welltop Power Meter Socket is a monitoring and testing instrument, which can be connected with applicances to measure electrical consumption, current, voltage and consumption of electricity and costs.



Features:

1. Big LCD display with backlight: can display 3 values at the same time, with backlight function, easy to read the data.

2. 7 Different display modes: Mode 1: Time/Watt/Cost Display; Mode 2: Time/Cumulative Electrical Quantity Display; Mode 3: Time/Voltage/Frequency Display; Mode 4: Time/Current/Power Factor Display ; Mode 5: Time/Minimum Power Display; Mode 6: Time/Maximal Power Display; Mode 7: Time/Cost Display.

3. Easy to use: Simply plug the meter into the wall socket and then plug your electric appliance into the power meter.

4. With overload protect function, when the power socket connects the load over 1650W, LCD on the second will flicker.

5. Built-in 3.6V rechargeable NI-MH batteries, which can store the total electricty and memory setting.



Specification:

Color: White

Material: ABS

Plug Style: US Plug

Operation Voltage: AC 120V, 60Hz

Operation Current: Max 15A

Wide Voltage Range: 110V ~ 130V

Time Display Range: 0s - 9999days

Wattage Display(watts): 0W-9999W

Voltage Display Range: 0V-9999V

Current Display (amps):0.000A-15.000A

Frequency Display:0Hz-9999Hz

Wattage Display Range: 0.0W-9999W

Price Display Range:0.00cost/KWH-99.99cost/KWH

Total KWH and Cost Display: 0.000KWH--999KWH,0.00cost---9999cost

Package Size: 5.7 x 3.3x 2.6 inches / 14.50 x 8.5 x 6.5 cm

Package Weight: 0.37lb / 0.17kg



What you get:

1x Power Meter (3-PIN US Plug)

1x User Manual



Welcome to welltop store, may you have a pleasant shopping experience! If you have any problems about our products, please feel free to contact us at any time !

• 【Electricity Usage Monitor】-Electricity Usage Monitor features 7 testing moldes，can not only measure Power (W), Energy (kWh), Current (A), Voltage (V), Power Factor, Cost, Max Power, Min Power, etc. but also calculate cost automatically after price-setting, it is the killer of the high-cost energy appliance, helping you lower power consumption and save money.
• 【Refined Accuracy】-Power Meter Socket has a high precision current sensor, can ensure you the best accuracy-Class 1.0 with 0.01W, 0.1V and 0.01A resolution.
• 【Digital Backlight LCD Display】-The Voltage Watt Energy Meter is built with a large backlight LCD digital screen which can be seen from far away and is very easy to read in good light or darkness.
• 【Built-in Battery & Data Stored】-The Electric Usage Monitoring Socket itself comes with 3.6V rechargeable battery(NI-MH), which can the information if you turn the plug off at the mains. Don’t worry about losing your data.
• 【Overload Protection】-Once the load exceeds 16A or 3680W, there will be a flashing “OVERLOAD” icon on the screen, so you will know which appliance is high energy consumption, or if in case things go wrong. This helps a lot in ensuring electricity safety and minimizing the loss.

• NEW DESIGN: Our new electricity usage monitor with 2 outlets design can allow you monitor the power consumption of two electronic devices at the same time. Monitor each machine independently, without affecting each other
• POWER OFF MEMORY FUNCTION: With standard memory function, the CT and EC-KWH of electrical power consumption can be retained in the event of a power failure. And you can clear them manually
• SAFETY & OVERLOAD TIP: Full ABS flame retardant material housing, and equipped with 14AWG heavy duty extension cord, performances excellent heat resistance. When the rated power exceeds 1200W, a warning will remind you to cut off the power in time
• ACCURATE MONITORING: Electricity analyzer monitoring device equippeds with a high-precision current sensor and high-resolution real-time monitoring. You can measure power(W), volts, amps, hertz, kilowatt-hours(EC), cumulative time(CT) and power factor accurately
• WIDE APPLICATION & EASY TO USE: Watt voltage amps meter tester can connected to TV, refrigerator, water purifier, HIFI System and other household appliances. It can be monitored easily when the device is connected

User questions & answers

Question:	will this record the average power consumption over time? if i needed to record the average power of two devices over like 8 hours can I do that
Answer:	Maybe. About 25 ft was the max range for me. I got a 15 ft usb cable extension and ran the reciever box out under the bed of my truck which got me in range of the tire sensors.
Question:	Is this 10a pr outlet (20a total) or 10a total (5 per outlet). the description says max rated current 10a so it is a little confusing? please clarity
Answer:	I don’t know to be exact, but probably every minute or so, and it does it in cycles, so one wheel at a time about every 30 seconds

Product description

Now you can cut your energy costs and find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt EZ, and it will assess how efficient they really are. The large LCD display will count consumption by the Kilowatt-hour, same as your local utility, letting you calculate your cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring voltage, line frequency, and power factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money. With the amazing Kill A Watt EZ you'll know "watts" killing you.

From the Manufacturer

The cost of electricity is soaring but you can help reduce your energy costs with the new Kill A Watt EZ. Simply plug it into a wall socket and then plug in your appliance to assess how efficient they really are. The large LCD will display the power consumption by the kilowatt-hour and the built-in memory retains accumulated readings when power is interrupted. Program in your local utility rate and display projected costs by hour, day, week, month, or year. Evaluate the quality of the electrical power provided from your utility company by monitoring voltage, line frequency (Hz), and power factor (VA). Perfect for detecting voltage drops and brownout conditions before they damage delicate equipment. The knowledge you gain from Kill A Watt EZ can save you thousands of dollars.

• Calculates cost and forecasts by week, month, and year
• Displays eight critical units of measure on the large LCD display
• Built-in backup of accumulated information.
• Accurate within 0.2%
• Calculates cost and forecasts by week, month and year

User questions & answers

Question:	Is this model 220v (Non US) AC compatible? If not, which model is? Thanks in advance
Answer:	At the moment, we don't have an API or developer program. That being said, we see integrations are an important part of the future of Sense and will continue to look into additional ways to connect with other devices. In the meantime, check out our IFTT integration!
Question:	does this work on 220v 60hz house outlet
Answer:	Unfortunately, Sense does not have an option for an ethernet port, our monitors must have a consistent WiFi connection.
Question:	Can it be set for a period of time (such as 24 hours) and record usage only then
Answer:	Using IFTT, you can log device turning on (or off) in a Google spreadsheet; see https://ifttt.com/sense_energy_monitor --- that said, if Google goes belly up and closes, same cloud-based service problem exists.
Question:	To how many decimal places does this one display for Watts
Answer:	For those of you familiar with Python or Docker, the open-source Vuegraf project allows you to pull all metrics from the vue service and store them into your own InfluxDB and build graphs in Grafana. You can set alarms to trigger when certain thresholds are breached. Search the Internet for vuegraf and it should be the first result.

Product features

Kill A Watt EZ Power monitor

Calculate your homes cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring Voltage, Line Frequency, and Power Factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money.

Kill A WATT EZ Power Monitor

With the P4460 you can easily identify which appliance in your home is costing you the most money. The Power Monitor also allows you to enter your Utility providers cost of electricity so you can monitor and pinpoint what each appliance is costing you.

About P3 International

Founded in 1987, P3 International is a privately owned manufacturer of solution oriented consumer products. For the last twenty five years we have strived to develop products that are easy to use and ahead of their time.

We are committed to manufacturing high quality products that appeal to a variety of different people, from the environmentally conscious to the more technologically minded consumer. With this philosophy driving us we are always looking for innovative new products which we can offer our customers.

Product description

Features：

 -Measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days 

- kWh is vital as this is what your electricity bills are based on!

 -Large, clear LCD display for easy reading (screen dimension: 45mm x 70mm). 

-Cumulative Kilowatt-Hour Monitor -Calculates electricity expenses -Electricity price setting by pressing COST, FUNCTION, UP and DOWN button according to the instructions -Sets electricity price value which ranges 00.00COST/KWH ~99.99COST/KWH -Displays volts, amps and wattage accurate to 3%  

-Low power consumption. -Built-in Battery(3.6V rechargeable batteries ) backup - allows meter to be moved (and viewed) without losing readings. Specifications： 

-Power consumption of the Power Meter Monitor：0.5W -Operating voltage: 120VAC -Frequency display: 60HZ -Operating current: max 15A 

-Wide voltage range: 110V-130V

 -The set Wattage display (Watts) is 0W~9999W; but the real Wattage display (Watts) is 0~1800W 

-Timing display range: 0 second~9999 days -Voltage display range: 0V~9999V -Current display (amps): 0.000A~15.000A 

-Frequency display: 0Hz~9999Hz -Price display range: 0.00COST/KWH～99.99COST/KWH -Total KWh and cost display:  0.000KWh-9999KWh, 0.00COST----9999COST -3-pin US plug -Dimensions: Length = 155mm; Width = 70mm; Height = 45mm (not inc. pins) -Functioning indicator

• Easily measure the power consumption and cost of your electrical appliances.
• Simply plug the meter into the wall and then plug your appliance into the meter.
• With the help of this Power Meter Monitor, You can make certain how much your standby appliances cost, what the power factor is, whether the appliances are really charged, and how long have your appliances been charged.
• Measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days - kWh is vital as this is what your electricity bills are based on!
• Large, clear LCD display for easy reading (screen dimension: 45mm x 70mm).