10 best power tester

• Please press the power button for 2 seconds to switch it on
• ▲Non-Contact & Safe Voltage Tester - Testing can be achieved without physical contact for its NCV Inductive Probe; Insulation operation ensures the safety of testing; In testing AC voltage, it can automatically detect the live wire or null wire; Intelligently identify Electric Field; In the vicinity of the voltage to be tested, the pen will give an alarming sound；Safety Compliance：CAT.III 1000V CAT.IV 600V；CE
• ▲Adjustable Sensitivity & Dual Range Testing - Adjustable sensitivity makes its measurement more sensitive and flexible;The Voltage Tester Pen has the dual testing range, you can adjust the sensitivity according to your needs(12-1000V AC or 48-1000V AC); Automatic Recognition of Voltage Intensity; In using, the NVC sensor of probe can automatically identify the voltage and display it on the LCD screen, simple and clear
• ▲High Definition LCD Screen & Low Battery Indicator - When testing the voltage, the brightness bar on the screen will tell you the voltage intensity; The screen will light up in red or green to distinguish the Live/Null Wire; When the battery voltage drops to less than 2.5 V, the flashlight of LED display reminds you to replace the battery
• ▲Buzzer Alarm & LED Flashlight - A white LED flashlight with high brightness and low power consumption helps in illuminating the workspace in dark; The lighting lamp and the probe are combined together, convenient for measuring; The buzzer alarm is loud;Triple alarms of sound, light and screen display for testing
• ▲Auto Power Off & Portable Pencil Hook - After about 3 minutes without any operation or signal detection, the voltage detector will be automatically shut down to extend the battery life and save energy; the convenient portable pencil hook help you to take it out easily; 24-month service

Product features

TACKLIFE -The Latest Dual-Range NCV Tester With High- Definition LCD Display

✓Safety Factor Certification:CAT.III 1000V CAT.IV 600V；CE

- What does CAT level mean to users?

It means a commitment to the personal safety of customers!

Voltage values behind CAT indicate the upper limit of their ability to be subjected to voltage shocks.

- Static electricity on the human body can also cause the response of the tester,because it's sensitive enough to ensure the safety of customers.

✓Adjustable Sensitivity

✓High-definition LCD display

✓Identification of Live/Null Wire

✓Low-battery Indicator

✓Portable Pencil Hook

✓White LED Flashlight - Energy Saving, Convenient

✓High and Low Voltage Signal Indicator

✓Buzzer Alarm - Loud and Sensitive

✓Auto Shutdown

✓Good Sensitivity of NCV Sensor

Live Wire Testing

When the sensor end of the measuring pen is close to the object to be measured, the fast-paced buzzer alarms with its red indicator flashing quickly, and the LCD shows red light, indicating that the tested line is a LIVE WIRE

Null Wire Testing

When the sensor end is close to the object to be measured, the slow-paced buzzer alarms with its red indicator flashing slowly, and the LCD shows green light, indicating that the tested line is a Null Wire

Switching on/off

Tacklife VT02 is an improved version which retains only two buttons, making it EASY to use. - Press the power button for 2 seconds to switch it on, and press the same button once to switch it off.

High-Definition LCD Screen

- When testing the voltage, the brightness bar on the high-definition LCD screen will tell you the voltage intensity; The screen will light up in red/green to distinguish the Live/Null Wire

- High/low sensitivity:When first turned on, the tester is in low sensitivity mode(48-1000V) by default. Press and hold the Sensitivity/LED button until the LED light is turned on, and then press the same button again to make the "S" button light up, the high sensitivity(12-1000V) was chosen.

Safe Non-Contact Voltage Probe

- The electricity can be measured without touching the measured object, which greatly helps your safe use, then indoor wiring and wiring detection is no longer a concern for you.Moreover, the sensitivity of NCV probe is high enough and the response of measuring electricity is very fast.

- Note: Please do not use the tester to test a bulb exists in a closed circuit, because there is no leakage of current nearby, the electric field is very weak, and then the electricity can not be detected.

Bright LED Flashlight

- When the circuit in your house suddenly goes wrong at night and it's dark all around, this pen with a bright LED light installed on the probe will be your most helpful friend at that time. - Under dark conditions, you can press and hold the sensitivity / flashlight button for more than 2 seconds to turn on/turn off the LED Flashlight, and then you can quickly use it to look for the problems in the circuit. LED flashlight saves power and provide convenience.

Portable Pencil Hook

- Convenient and friendly design. For it's weight or overall design, this pen is as easy to carry as a regular pen. The design of the pencil holder enables you to carry the pen anywhere you want. You can take it away directly in your pocket after use, without occupying much space

▲Please install the battery correctly and pay attention to the positive and negative electrodes. Error installation will make the voltage tester pen unable to work normally.

Intelligent Electricity Consumption Reminder

Auto Power Off - After about 3 minutes without any operation or signal detection, the voltage detector will be automatically shut down to save power, which can also extend the battery life;

Low Battery Indicator - It is helpful for you to use the pen safely. When the power of the pen is insufficient, the LCD screen will give relevant prompts to remind you to replace the battery in time, so as to avoid using the pen when the pen has no power.

The Differences Between the Latest NCV Tester VT02 and the Previous VT01

Technical Specifications:

►Dual Range of AC Voltage: 48V-1000V/12V-1000V

►Frequency: 50Hz / 60Hz

►Alarm Mode: Sound & light & Screen alarm

►Electric Torch: LED illumination

►Low-voltage indicator: Yes

►Power Source: 2 x 1.5V AAA Batteries

►Service Temperature: 0-40℃

►Storage Temperature: -10-50℃

►Altitude: <2000m

►Safety Compliance: CAT.III 1000V CAT.IV 600V；CE

Product description

Safety is the number one priority on any job site. Sperry Instrument's testing equipment can be put to good use ensuring that electrical equipment is properly installed and safe to operate. The condition of electrical installations can be established when contractors use test equipment. Any test unit that can be used to measure or review an application without coming in contact with a live conductor is a necessity. Testing equipment can be put to good use ensuring that electrical equipment is properly installed and safe to operate. Faulty installations can be lethal; the condition of electrical installations can be established when contractors use test equipment. Sperry Instrument is pleased to offer an innovative full feature line of test equipment designed to make electrical work faster and safer. The electrical testers below accurately identify and capture circuit continuity and voltage measurements. These testers are ideal for any electrical professional or to have at home.

From the Manufacturer

Non contact sensing circuit.

• VERIFIES VOLTAGE PRESENSE: Verifies the presence of AC Voltage prior to working on electrical installation or troubleshooting (GFI6302 and VD6504)
• DURABLE: Hi-Impact Resistant ABS housing with soft over-molded rubber grips with a compact ergonomic design (GFI6302 and VD6504)
• QUICKLY READ: Bright color-coded neon lights for easy visual indication (GFI6302)
• CIRCUIT SENSING: Non-Contact sensitivity detects 50-1000V AC and patented battery self-test feature (VD6504)
• AUDIBLE AND VISIBLE INDICATOR: 360° visual and beeping audio Non-Contact Voltage Detection (VD6504)
• RATED: CAT Rating III 300V, C-UL US (GFI6302), CAT Rating III 1000V, IV 600V, (VD6504) 10 ft Drop and 250 lb Crush (GFI6302 and VD6504)

User questions & answers

Question:	The volt sensor is so sensitive it goes off near an outlet. Is that normal? I thought I could stick it in the slots to find out which side was hot
Answer:	Yes, you can insert the tip of this tool into the slots of an outlet then press the button and it will tell you which side is hot. You can also use it to test the wires in a circuit if you are unsure which is the hot lead. If the wires are connected to the switch, outlet etc touch the tip to the bared wire at the contact point and it will tell you if it is hot. You can also just touch the insulation covering the wires to get a reading too. Try to keep the wires you are testing separted by a few inches if possible, this will help prevent any false reading you might get by voltage seepage from the insulated hot lead. If you didn't know - the hot wire in a circuit is usually black, red or maybe some other dark color, the white is the neutral or return and the green is the ground. Start by testing the dark wire first but as a precaution be sure the check the white also - someone may have wired in incorrectly and that could be a hot lead. I've had - well had, until I left it someplace - one of these for years and it's a good useful tool. So I gotta get another one now, and I'm getting one of these.
Question:	Can this be used as a circuit breaker finder
Answer:	You could use them to find a circuit breaker, if you had someone to watch the tester, while you went through your panel turning off and on your breakers untill you found the one that controlled that circuit. If you didn't want to do that then you will need to buy an circuit breaker finder kit.
Question:	does this tester work on low-voltage landscape lighting wires
Answer:	The non contact voltage tester will.
Question:	can it tell the diffrence between 220v and 110v
Answer:	If you can’t tell the difference 110v and 220v .You Dont Need A Meter.

Product features

Non-Contact Voltage Tester

This unit allows the user to verify the presence of AC voltage prior to working on an electrical installation or during troubleshooting without requiring physical contact with live electrical conductors. The fully insulated probe tip eliminates the risk of contacting live electrical wires while the patented battery check feature designed into the unit ensures tester and batteries are operating properly, virtually eliminating false negative readings.

Sperry Instruments GFCI Outlet Tester

When you need a GFCI Outlet tester that's compact, provides comfort for repeated use and tests seven different wiring conditions with a press of a button, reach for the Sperry GFI6302.

Product description

Klein Tools NCVT-1 Voltage Tester, Non-Contact Voltage Detector for AC Voltage, Low Battery Indicator and Auto Shutdown, Batteries Included

• Voltage Tester provides non-contqact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires
• Volt Pen with high intensity, bright green LED that indicates the tester is operational and aids in illuminating the workplace
• When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds
• Discreet digitally controlled ON/OFF power button
• Auto power-off feature conserves and extends battery life

User questions & answers

Question:	Does this test through the wire insulation
Answer:	Yes. You can tell if it is an energized cord/circuit.
Question:	Why does my tester beep 6 times, flashes red then turns off
Answer:	i never noticed mine beeping and flashing but it alway's shut's down unless you hold the power button down for a few second's.
Question:	Hi what does a slow beep with a red light indicate it's not rapid. Thanks Tom
Answer:	Klein non-contact sensors are known for being misleading, by blinking red and beeping even when there is no electrical current nearby. It does blink red and beep fast (and continuously) at 110v power and is pretty good for that. The slow blinks/beeps, even when touching wood or the edge of a kitchen counter, mean nothing. Some say it's due to very low voltage or 'phantom voltage' but this doesn't always seem to be the case.
Question:	This pen tester make any sounds when it detects power
Answer:	Yes it make a sound and flash red, but make sur than the tester is on green to be sure to test 120 volt because you have two options bleu for low voltage and green for 120 volts!

Product features

Non-Contact Voltage Tester with Low Battery Indicator and Auto Shutdown

Use this Non-Contact Voltage Tester to detect standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires. A bright green LED will tell you the tester is working and also functions as a worklight. It changes to red and warning tones sound when voltage is detected.

• 3-48v widely use Circuit Tester/circuit test light,Designed to check car electrical circuits and other 3-48v wiring and circuits
• .1 Accuracy voltage reading on white Backlight digital display
• Made with sharp stainless steel probe for piercing wires, for hard to reach areas
• Portable 3.6 m long enough PU spring wire for easy operation
• Constructed with acetate fiber, high toughness and shatter-proof

User questions & answers

Question:	Does it bave light and beeper
Answer:	dose not work how to replace
Question:	Is it suppose tp have a fuse in it
Answer:	To load (draw current) one needs a low resistance, not high. In this case I do not think the manufactures specifies the testers input resistance. It is an important factor for sure.
Question:	We purchased ours on 3/10 and it has already stopped working. Is there any guarantee or offered replacement? Barely had a month
Answer:	The principle of the ITC-308S is, when the temperature reaches/ lower than TS (temperature setting value) - HD (heating difference value), it will turn on the heater, turn off at TS. When the temperature reaches/ higher than TS + CD (cooling difference value), it will turn on the cooler, turn off at TS. For example, you want to maintain 25°C, temperature range is 23°C ~28°C. Please set TS=25, HD (heating difference value)=2, CD (cooling difference value)=3. When the temperature reaches/ lower than 23°C (TS-HD), it will turn on the heater, turn off at 25°C. When the temperature reaches/ higher than 28°C (TS+CD), it will turn on the cooler, turn off at 25°C. Please note that the AH is alarm high limit function, AL is alarm low limit, they are separate from temperature control range. The AH and AL means, when the temperature reaches/ above AH or reaches/ below AL, it will alarm. If there are any questions, please contact us on Amazon
Question:	Does this tester have high enough resistance to load a circuit while testing like a traditional incandescent test light
Answer:	It doesn’t matter where your set point is it could fluctuate by that 1 degree either way up or down that is the smallest setting you can set on that unit let’s say your set point is73 degrees the smallest setting you have is 1 degree up or down meaning if the temp drops to72 degrees the heater should come on or if the temperature goes up to 74 degrees the chillers or fans should go on it works fine for me I have a planted tank with plenty of fish and the swing in temperature doesn’t seem to bother either the fish or the plants. Having said all that I would assume the greater volume of water the slower the rate of change the other issue that you should check is keep the temperature probe as far away from the heater as possible as that will help you maintain a more even temperature if you raise the set temperature by 1 degree to74 degrees then your low range would be 73 and the high range would be 75 as far as temperature accuracy goes when compared to another digital thermometer mine is within 1/10 of a degree . Hope this helps . You may be able to keep it closer using the centigrade scale it may bring you closer to what you need but I don’t know for sure.

Product features

Large Size Heavy Duty 3-48V Digital LCD Circuit Tester Test Light

JASTIND professional digital Circuit 3-48V Tester Designed for car electrical circuits,automotive battery, battery charging systems,ignition systems,which is a must have tool for any automotive engineer ,electronic engineer or circuits DIY .

Voltage Testing

Used to test battery and automotive circuits voltage, when use this test light, do connect the Alligator Clip to the ground.

Fuse Test

Connect the alligator clip to the ground, use the probe to touch wires or fuse to diagnose short circuit or broken circuit.

Backlight Display

LCD digital display with white backlight, easy read and convenient to use in the dim light.

Heavy duty acetate fiber body

Constructed with acetate fiber, high toughness and shatter-proof.

Extended spring cord

Portable 140 In long enough PU spring wire for easy operation.

Sharp stainless steel probe

Made with sharp stainless steel probe for piercing wires, for hard to reach areas.

Large alligator clip

Large size alligator clip for easy and one hand operation.

Product description

The RT250 is an electrical receptacle tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices. The LCD displays the voltage, identifies the wiring fault, and the time required to trip a GFCI device. It is designated for use with North American 3-wire 120V electrical outlets. GFCI electrical circuit tester inspects GFCI devices. Large LCD display shows voltage, wire faults, and GFCI trip time. Identifies common wiring faults on North American 120V outlets. Bright green and red LEDs illuminate for visual indicators. CAT II 135V safety rating. Durable 6.6-Foot (2 m) drop protection. For use on 3-wire, North American 120V electrical outlets only. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

• GFCI RECEPTACLE TESTER FEATURES LARGE LCD READOUT. View results instantly without the need to look at a chart to understand results. In addition to a clear LCD readout, bright green and red LEDs illuminate to show correct or faulty wiring
• TEST TRIP TIME OF GFCI IN SECONDS. Find out if the trip breaker is functioning and how long it takes to trip
• DETECT AND IDENTIFY COMMON WIRING FAULTS. Conditions are Wired Correctly, Open Ground, Open Neutral, Open Hot, Dual Open (Neutral & Ground), Reversed Hot/Ground, and Reversed Hot/Neutral. The Dual Open condition is patent pending
• AUTO-HOLD FUNCTION IS CONVENIENT FOR HARD-TO-REACH OUTLETS. Simply remove tester to view the reading
• SAFE AND DURABLE TESTER FOR INSPECTIONS IN NORTH AMERICAN 120V OUTLETS. CAT II 135V safety rating and 6.6-foot (2 m) drop protection

• 【Non-Contact Voltage Tester with Wide Testing Range】 This Non-Contact Voltage Tester Voltage within 12-1000V AC, All Electric Appliances in Your Family can be Tested by it
• 【Safe and Convenient】 The Voltage Pen Tester Detectes Voltage in a Non-Contact Way, So Do Not Worry about There Could be any Possibility of being Shocked by the Electricity
• 【High Efficiency】 As Long As Voltage is Detected, the Led in the Tester Pen will Shine
• 【Multifunction, Easy to Use】 It Also Acts as an Emergency Flashlight which can Illuminate the Working Area, You can Use the Non Contact Voltage Detector in Circuit Breakers, Lighting Fixtures, Switches, Outlets, Wires and Anywhere You Need it
• 【CE CAT III600V RoHS Certificate】 A Professional Tester, It is Perfectly Suitable also for DIY'ers, Hobbyists and Home Owners, It Helps You Make the First and the Most Important Safety Check

User questions & answers

Question:	Will this work on Christmas lights
Answer:	That depends on what type of light you have. Does your christmas lights power by batteries (DC), or AC source? What about the range of working voltage output? Does it within AC 12V-1000V? a.If your Christmas lights are powered by battery, that is DC voltage, this AC voltage tester will not suit for DC voltage; b. If your Christmas lights are powered by plug in socket, that is AC voltage, this tester could test AC 12-1000V. Please note: 1. This is a AC Non-Contact Voltage Tester, range (AC 12V-1000V), will not suit for DC voltage; 2. Due to the wide measurement range (AC 12V-1000V), there will be an alarm when there is live equipment or static electricity nearby. 3. It will flash and beep when the Non-Contact Voltage Tester is close to AC voltage Source during the specified voltage range even though without touch the measured object. As more closer, it will beeps louder. You can distinguish the Hot and Null Wire through different frequency alarm sound and LED Indicator. You could refer the video in the listing. Should you have any problem with the product or the order which fulfilled by seller, you could click the link to contact us: https://amzn.to/2LQZmFD
Question:	Can it detect load? My other sensor gives a positive on a cable even though the light switch is off
Answer:	If there is power on the cord you will pick up a voltage signal.
Question:	does this tester have a beeping sound whence detecting voltage
Answer:	YES! The Neoteck Non-Contact Voltage Tester DOES BEEP when voltage is detected! The beeping is very convenient to have when sticking the tester in a space where one has a hard time seeing the light-indicator.
Question:	What is the diference touching positive,negative an neutral
Answer:	This product only could test positive and test whether the wire has high voltage or not. If you need to distinguish positive, negative and ground wires, you could purchase this: B0819VNT6V. Should you have any problem with the product or the order which fulfilled by seller, you could click the link to contact us: https://amzn.to/2LQZmFD

Product features

Tips of Non-Contact Voltage Tester:

• Due to the wide measurement range (12V-1000V), there will be an alarm when there is live equipment or static electricity nearby.
• It will flash and beep when the device is close to AC voltage greater during the specified voltage range even though without touch the measured object. You can distinguish the Live and Null Wire through different frequency alarm sound and LED Indicator.
• The video in listing in reference.

Live Wire Testing

• The buzzer gives a quick and frequent warning when the end of the tester is near the object to be measured.
• The red indicator light flashes quickly. This indicates that the line under test is a live line.

Safe and Convenient

The Voltage Pen Tester detects Voltage in a non-contact way, so do not worry about there could be any possibility of being shocked by the electricity.

Breakpoint Test

Moving the NCV tip of the tester along the wire, when the voltage alert signal disappear, that is most probably the break-point.

Bright LED Flashlight

- When the circuit in your house suddenly goes wrong at night and it's dark all around, this pen with a bright LED light installed on the probe will be your most helpful friend at that time. You can quickly use it to look for the problems in the circuit. LED flashlight saves power and provide convenience.

Portable Hook Dsign

- Convenient and friendly design. For it's weight or overall design, this pen is as easy to carry as a regular pen. The design of the pencil holder enables you to carry the pen anywhere you want. You can take it away directly in your pocket after use, without occupying much space

Power by 2x1.5V AAA batteries (included)

Low energy consumption/ Low battery indication/ Auto Power Off

• Please install the battery correctly and pay attention to the positive and negative electrodes. Error installation will make the voltage tester pen unable to work normally.

Product description

The Klein Tools ET310 Circuit Breaker Finder with Integrated GFCI Outlet Tester is a digital circuit breaker finder used to locate the correct circuit breaker in a panel to which an electrical outlet or fixture is connected. The Transmitter is connected to the electrical outlet or fixture in the circuit while the receiver is used to scan the breakers in the circuit panel. The Transmitter also features a GFCI outlet tester. Circuit Breaker Finder locates the correct breaker in a panel. Tester consists of two parts: a Transmitter and a Receiver. GFCI Outlet Tester integrated in receiver. Transmitter docks in the Receiver for convenient storage as a single item when tester is not is use. Transmitter incorporates a three-pin plug for connecting to North-American-style grounded electrical outlets. The transmitter may be connected to other electrical fixtures using optional accessories which are sold separately (Cat. No. 69411). Receiver powers off automatically after approximately three minutes of non-use to conserve battery life. Transmitter is powered by the circuit when connected to the electrical outlet or fixture. Low battery indicator. Easily accessible battery compartment. Uses one 9V battery in receiver only; Transmitter does not require a battery. Built to withstand a 6.6-Foot (2 m) drop. CAT II 120V safety rating. Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation. Includes Transmitter, Receiver, user manual, and 9V battery (for Receiver). For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

• This circuit breaker finder can quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
• Tester consists of two parts: a Transmitter, connected to the electrical outlet or fixture and a Receiver, used to scan the panel to locate the correct breaker
• Receiver delivers clear visual and audible indications when the correct breaker has been located
• Operates on 90-120V AC circuits
• Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices

User questions & answers

Question:	klein tools 69411 is this part available
Answer:	No half sizes
Question:	Why don’t they have one for high voltages
Answer:	Yes. I've had mine a couple months and wear them multiple times a week. Still no leaks.
Question:	The et-300 claims a range of 1000 ft, i cannot find that spec on the et-310. what is the range on the newer model
Answer:	I would go up to 14
Question:	Does this tester have a variable sensitivity wheel? Or is that indeed why some people said it was nearly worthless determining the correct breaker
Answer:	They are lighter than my steel toe work boots, but really, I wear a size 14, no footwear is light for me, besides flipflops.

Product features

AC Circuit Breaker Finder with Integrated GFCI Outlet Tester

The Klein Tools ET310 Circuit Breaker Finder with Integrated GFCI Outlet Tester is a digital circuit breaker finder used to locate the correct circuit breaker in a panel to which an electrical outlet or fixture is connected. The Transmitter is connected to the electrical outlet or fixture in the circuit while the receiver is used to scan the breakers in the circuit panel. The Transmitter also features a GFCI outlet tester.

Product description

Klein Tools Electrical Test Kit

• The MM300 multimeter measures AC/DC voltage, DC current and resistance and has a safety rating of CAT III 600V, Class 2, Double insulation
• The NCVT-1 has a bright green LED to indicate the tester is working; it changes to red and warning tones sound when voltage is detected
• NCVT-1 has a digitally-controlled ON/OFF power button and auto power-off feature to conserve and extend battery life
• Receptacle tester detects wiring configurations and indicates correct wiring, and identifies common wiring faults
• Identifies open ground, open hot, open neutral, hot/ground reversed; it does not indicate quality of ground, multiple hot wires, or a combination of defects

User questions & answers

Question:	What is the resistance measuring range
Answer:	Range is 0.200 Ohms up to 200 MegOhms, a very good range. Disregard the other answers to this same question, answers which are incorrect.
Question:	does it have a built in kick stand
Answer:	Yes, there is a built in kick stand on the back of the unit.
Question:	does it come with a case
Answer:	No, but there is a case that will work fairly well made by Klein.
Question:	Does this come with tester leads? Do you sell them separately
Answer:	Yes, this kit does include tester leads- HNS Tools

Product features

Electrical Test Kit

Klein Tools updated Electrical Test Kit contains MM300 (Manual-Ranging digital Multimeter), NCVT-1 (Non-Contact Voltage Tester) and the RT105 (Receptacle Tester). The NCVT-1 automatically detects standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets, and wires. The RT105 detects the most common wiring problems in standard receptacles.

• ACCURATELY MEASURES: AC/DC Voltage, DC Current (Not AC Current), Resistance, Continuity, Diodes and more.
• TROUBLESHOOTS SAFELY: Automotive and household electrical problems safely and accurately; Overload protection on all ranges
• EASE OF USE: Data hold and large digital display with backlit LCD for visibility in dimly light areas; Sampling speed: 2x per second
• 1 Year Warranty. Built-in kickstand for hands-free use. Protective rubber corner guards for drop protection
• NOTE: This meter can not test AC Current; Ensure your multimeter is set to the correct setting before testing

User questions & answers

Question:	which setting is for volts, and which is for ac
Answer:	The V with the two lines is DC volts and the line with the squiggly line is AC volts.
Question:	is the continuity test audible
Answer:	Good question. and I can't find an answer it doesn't say but in the picture when it's showing someone testing continuity it shows that it's beeping what it doesn't say that it does beat and we've got two people on here that say it does not and two people that say that it does so good luck I'm looking for one that is audible myself why all multimeters don't have an audible noise when you have continuity I will never know either that or you can have one that has a paper thin needle that jumps and you can't see it and you have to take your eyes off of what you're working on to see if you have continuity and when you move your head you lose contact and it's such a pain in the ass
Question:	Is this unit protected by a fuse? If so, is it replaceable? My last meter was fused but it was soldered. I couldn't easily replace it
Answer:	I had to replace the ammeter fuse (because I forgot to switch the hot (red) test lead from the left side to the middle, before testing my car's battery voltage). That fuse is 10A 600V. I looked around for those & couldn't find them, but found 10A 250V and these worked OK. They're 20 x 5 mm ( .2 x .79") ceramic fast-blow. https://www.amazon.com/gp/product/B07JFDTTMJ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Question:	Can this handle being plugged into a wall socket? Also, can someone give a walkthrough of how to safely test a socket
Answer:	plug the red lead into the meter socket marked COM and the black into the center meter socket. Set the dial to V~ (for AC volts) on the 200 scale (for household current) insert one probe lead into each of the wall socket's vertical slots and move them around a bit inside the outlet slots to make sure you're getting a good connection, if in doubt plug a lamp or something into the socket. If you suspect the outlet socket itself has failed carefully remove the wall plate in order to access the actual wires connected to the outlet to be sure it's either a dead circuit or the outlet itself has failed.

Product features

AstroAI Digital Multimeter

The AstroAI AM33D Multimeter is designed to safely and accurately troubleshoot a variety of automotive and household electrical problems. It's easy and safe to operate and features many different functions for measuring current, voltage, and resistance, as well as continuity, transistor, and diode testing, which is both for automotive and household uses.

Troubleshoot Electrical Problems

AstroAI multimeter is professionally designed to troubleshoot electrical problems or just for electronics training.

Continuity Test

Connect the test leads to two points on the circuit being tested.

Intelligent Anti-burn and Dual Fuse

Double Fuse Protection, more secure and reliable; This multimeter is designed with safety in mind. Overload protection on all ranges.

Backlit LCD

Large digital display with backlit LCD for visibility in dimly light areas.

Data Hold

When taking measurements and recording results, it is often easier to use the data hold function to freeze the data being displayed on the digital display.

Low Battery Indication

You can quickly know to replace the battery and continue working. so you never accidentally run out of juice.

Open Support Stand and Protective Rubber

Built-in kickstand for hand free use. Protective rubber corner guards for drop protection.

Product description

Simply touch the tip to a terminal strip, outlet or cord. When the tip glows red, and the unit beeps, you know there's voltage in the line. Electricians, maintenance, service, safety personnel can quickly test for energized circuits and defective grounds on the factory floor, in the shop. Continually tests its battery and its circuit integrity with a periodic double flash visual indication using fluke voltbeat technology. It comes with a two year warranty. It detects line voltage from 90vac - 600vac (1AC-AI-II).

From the Manufacturer

The next generation-voltAlertAC non-contact-voltage testers from Fluke are easy to use - just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know-voltage is present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.

• Voltbeat technology and continuous self-test - so you always know it is working
• Upon detection, tip glows and beeper sounds
• CAT IV 1000 V for added protection
• Range 90-volt to 1000-volt
• 20-volt to 90-volt AC control circuit model also available

User questions & answers

Question:	Can this determine if a lightbulb socket has power
Answer:	It will always glow when the "hot" side is present. However, if you are missing the neutral to your lightbulb socket your lightbulb will not work, but the instrument will still glow, showing power is present.
Question:	What does this one do better than a non-contact tester at 1/3 of the price
Answer:	It has better build quality, and it's not made in China (to me that means it's less likely to contribute to my death or injury).
Question:	is this better than the klien
Answer:	I find the Fluke's build quality to be better than the Klein. If I drop the Klein, the tail cap falls off and the batteries fly out. I don't have that issue with the Fluke. Also the power button works better, my Klein's button is too sensitive. Also the Fluke I have (the 1AC model) will detect voltage in most tamper resistant receptacles without having to open the shutter, where my Klein will not (some user reported the Fluke is not sensitive but relatively my experience is the opposite). Finally, the Klein and the Southwire are made in China (although the Southwire at least has a LED flashlight built in). The Fluke is not made in China so it is easily worth twice the price to me. You can check out the Fluke and Southwire models at Lowes (and purchase there if you like one or the other). The Klein is often on sale at HD but I really recommend against it compared to the other two.
Question:	What is the difference between fluke 2ac and fluke 1ac-a1-ii
Answer:	The 2ac is the newer model with an "always on" function. It has a button that is used only to ensure that it still has battery power. The 1ac is the older one that can be turned on or off. They both test for voltage presence the same way, but the 1ac has an audible alert function which the 2ac does not have.

Product features

Fluke 1AC II A1 VoltAlert Electrical Tester

Easy to carry in your shirt pocket and with continuous self-test so you always know it’s working, the Fluke 1AC-II non-contact voltage detector allows you to quickly test for energized circuits in the workplace or at home. The VoltAlert AC non-contact voltage testers from Fluke are easy to use – just touch the tip to a terminal strip, outlet, or supply cord. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.

The tip glows red and a beeper sounds when voltage is detected

• A loud, easy to hear beeper will sound and the tip will glow red when voltage is detected
• Optionally, the beeper can be disabled for use in quiet environments

Continuous self-test so you always know it’s working

• When the tip blinks red you know it’s working properly
• Provides a continual visual indication that the 1AC II is on

90 V to 1000 V AC or 200 V to 1000 V AC voltage detection range for wide application use

• Wide voltage detection range allows for use in a broad range of applications
• Also available in a low voltage model from 20 V to 90 V AC for controls circuits

Safety features

• Rated to CAT IV 1000 V for added protection
• CE and CSA approved