14 best drok multimeters

Product description

Is your mobile device not charging properly, and you suspect the new charger that you bought recently?Do you want to check If your solar charger is giving proper current for your mobile device?Specification: ✓ Input voltage : 3. 20 - 15. 0V✓ Resolution: 0. 01V (/=10V)✓ Measuring current: 0. 00 -3. 00a (10a max, but cannot work in 10a for long time)✓ Resolution: 0. 01A✓ Capacitance measurement: 0-99999 MA/H✓ Capacitance accumulation: Yes✓ Power testing: 0. 00-9. 99-99. 9W✓ Over-voltage alarm: when voltage >/=5. 6V, voltage digital point will Flash quickly✓ Lacking-voltage alarm✓ Over-current alarm : when current >/=3A, current digital point will Flash quickly✓ Short-circuit alarm: current digital point will Flash quickly dual USB output✓ Output I (dual function - device charging and data transfer)The charging current, in this case, is determined by compatibility. you can view the voltage and current values at the same time. ✓ Output II (device charging only)The built-in intelligent charging control IC matches the most appropriate and safest current for your devices automatically. It is used mainly for non-original chargers, but it is suitable for original chargers as well. This universal USB gadget is suitable for most of the mobile phones, mobile power, tablet PCS and other USB devices, like BC1. 2, yt/d1591-2009 and non-bc1. 2 (including iPad, iPhone and Samsung Galaxy). Get yours today by clicking “ add to cart above!

User questions & answers

Question:	Can it display how much remaining power is in 20,000ma power bank? if so, volts or amperes? thank you
Answer:	The battery in your power bank is rated at 20,000ma but the battery voltage (single lipo cell) is 3.7Volts. They then use a DC to DC step up circuit to get the 5Volts for the output. Because of this a better measurement would be watt hours. If you have a 5 volt output that gives you 1000ma (1 amp) then you are using 5 watts of power. 5 Watts of power for 3.7 volt battery is using 1351ma out of the battery (assuming 100% efficiency ) to provide you with 5 volts at 1000ma.
Question:	When I plug the same device to Output I or Output II, I get different values for amps. Shouldn't it be the same
Answer:	It my understanding that the outputs are different. Output II is for the higher amperage devices. The documentation says that it does not support Apple iPhone/iPad on output II- just on output I. I tried it with my Nexus 9 -- and got 5.42 v, 1.42 amp on both outputs using a 2 amp charger. I don't have a apple charger at that amperage, so I can't really see a difference.
Question:	Can the led display model effectively measure qualcomm 2.0 quick charging
Answer:	According to the documentation, "Output I Support QC 2.0 charging for 9V & 12V measurement. But make sure you don't insert any device in Output II when using QC 2.0 Charging." So, yes, but you must use the port with data connection (output-1) and not connect anything else to output 2 while using QC. Note that I have not tried it myself (yet).EDIT: Okay, now I have tested it with my Samsung Galaxy Note 4 and a RAVPower QC 2.0 certified charger. And yes, the DROK LED meter showed 9.4V @ 1.6A when I charged it through output 1.
Question:	Does it support AND maintain usb 3.0 transfers for usb 3.0 devices (usb 3.0 has different signal pins and different power capabilities than usb
Answer:	The data transfer rate is limited to that of USB 2.0 port. I just tested this with a USB 3.0 flash drive (Sandisk Ultra Fit). When connected through the DROK monitor, its READ speed is limited to about 41MB/s. The same drive can deliver 145MB/s when connected to an USB 3.0 port directly.

Product description

DROK Battery Tester Digital Voltage Ampere Power Energy Multimeter



Technical Parameters:

Model: WLS-PVA200

Current measuring range: 200A

Current resolution: 0.2A

Power supply range: DC5～90V

Voltage measuring range: DC0～300V

Voltage resolution: 0.1V

Capacity measuring range: 0～999AH

Power measuring range: 0～999KW

Electric energy measuring range: 0～999KWH

Measurement error:±1%

Refreshing speed: 0.5S/time

Installing size: 76.0mm * 39.5mm

Diameter of transformer:Φ20mm

Working current: backlight on: 10MA;backlight off：4MA

 

Package includes:

1 X LCD Digital Cullen Meter 

• Multifunctional Meter: DROK multimeter panel is available to measure percentage and AH of remaining capacity, DC positive and negative bidirectional current, DC voltage, DC positive and negative power, DC positive and negative bidirectional accumulated electric energy. Voltage measurement range is DC 0-300V, current measurement range is 0-200A.
• Hall Sensor & Easy Mount: the voltage amperage meter is coming with a Hall transformer to for isolated measurement, reliable and safe; accepting two-wire system connection and three-wire system connection, could be powered DC5~90V, easy and simple to wire this meter up.
• Display: backlight can be controlled to be ON or OFF as user’s need; Equipped with full angle of view LCD screen, users could see the display clearly whenever at night and day, indoor or outside, even under the sunshine.
• Alarming Function: it will alarm and flash to draw your attention when the real voltage is higher or lower than preset alarming voltage and real current is higher than preset current; It will also alarm and flash to remind you to charge for your device when the remaining capacity of battery is low.
• Wide Applications: Can be used as dc amp meter, digital volt meter, power meter, battery capacity monitor. Suitable for all kinds of batteries, such as Lead-acid batteries, Lithium Polymer batteries, lithium iron phosphate batteries and etc. With function of storing date when power down, using this meter, no need to worry that your electric data will be lost.

User questions & answers

Question:	what is the actual size of the product? lxwxh .. nothing listed here
Answer:	Inside measurements for the cut out are 72mm wide, 39mm tall and 25mm deep. The outer face plate is 7mm wider and 3mm taller, not much difference. I made a matting skirt out of thin black plastic since it's very difficult to cut a perfectly sized rectangle in the wall.
Question:	How to use menu options no user manual is included
Answer:	Dear customer， We have pdf manual on product deatils page. It can be found on the "Technical Specification" from this page. Or please click on this link directly. https://m.media-amazon.com/images/I/B1ubSSVdpyS.pdf Best regards, DROK
Question:	specs say it is a 200A meter, yet some say its only goes up to 100A, can anyone confirm this can measure up to 200A
Answer:	im sitting looking right at one 6months installed ... it regularly measures 155 amps of 12volt charge and up to 199amps discharge .... those are my system limits witb a 5000w inverter several golf cart batteries and two 100amp chargers
Question:	How long i as the cable for sensor and what is max wire size that will fit in sensor
Answer:	The sensor cable is about 8 inches long but i cut my cable and extended it to about 10 ft. I testes it up to 15ft and it worked fine. You could possibly go longer. Just use a good quality multi wire cable, or make your own. About 18AWG probably OK. I recall the hole as 20mm, roughly 3/4 inch diameter. No problem for RV battery cable. Remember you can run more than one wire through the hole, That way you can still use battery terminal as the tie point for the various wires that may already be connected there. The sensor will read the Sum of currents, that is for example, if you have charging from a solar system at say 5A, and a discharge load to lighting at say 3A, your meter will show 2A charging. Hope this helps

Product features

Buttons

With 2 buttons to be easily operated.

Bi-direction Current

With the capability to measure current in forward and reverse direction.

Backlight Control

Backlight can be manually turned on/off via the button.

Can be clearly viewed in any light conditions.

• 6-IN-1 MULTIMETER --- detect and display voltage, current, active power, battery electric energy, power frequency and power factor on one interface.
• MEASUREMENT RANGE --- voltage AC 80.0-300.0V; current 0-100A; power 0-30000W; Electric energy 0-99999kwh; frequency 45.0Hz-65.0Hz; power factor 0.00-1.00PF.
• DISPLAY --- digital LCD color display.
• DATA AUTO STORAGE --- when power off, the electric energy data will be stored and memorized automatically, can be reset.
• NOTE --- this meter can only be used for measuring 50-60Hz pure AC city electricity, it will be damaged if used to measure square wave, inverter output or modified sine wave circuit.

User questions & answers

Question:	What are the panel cutout dimensions? seller only provides the bezel dimension for the width as 79mm. i need to know the cutout dimensions
Answer:	Up to 100 amps
Question:	Are 200amp models available
Answer:	This meter does not have any kind of data output. There are only four "input" terminals. Two are for 120 volts AC and two are for a toroidal current transformer that is supplied with the unit. One wire of the 120 volt AC load (preferably the hot lead) goes through the center of the toroid current transformer. Hope this helps.
Question:	What are mAmps of CT sensor
Answer:	Those are the correct cables. After, you connect it all, it has to be calibrated.
Question:	Does this meter have an output that can be wired to a data logger for recording measurements over time
Answer:	No not weather proof will need an enclosure rated for your install environment.

Product features

Clear Color LCD Display

• 52*26mm color LCD screen.
• Display voltage, current, active power and electric quantity values simultaneously.
• All data will be clear at a glance.

Power Energy Clear Key

• When power off, the electric energy data will be stored automatically.
• The accumulated electric energy can be cleared by the button above.
• Clear method: Hold press the button for 5 seconds, and the accumulated electric energy will be cleared.

Current Transformer

• Comes with a 100A CT.
• CT Inner Diameter: 15.5mm
• CT Outer Diameter: 27mm
• Note: Please use the attached CT to measure, otherwise the measured value may be inaccurate.

Product description

Parameters: Working Voltage: 80 260VAC Measuring Range: 80 260VAC Rated Power: 100A/22000W Operating Frequency: 45-65Hz Measuring Accuracy: 1. 0 grade Test range and display format: Power Range: 0 22kW within 1kW, display 0. 0 999. 9W; within 1kW 10kW, display 1000 9999W; 10kW and above, display 10. 0 22. 0kW. Energy Range: 0 9999kWh within 10KWh, display 0 9999Wh; 10kWh and above, display 10 9999kWh. Voltage Range: 80 260V(display 80 260V) Current Range: 0 100A(display 0. 00 99. 99A) Note: This module is suitable for indoor, please do not use outdoor. Applied load should not exceed the rated power. Wiring order can't be wrong. Packing Includes: 1x AC Power Multimeter

User questions & answers

Question:	I want to measure the power of a pool heat pump using 240 ac in us measurements. do i take both legs (using 2 meters) and combine the readings
Answer:	I have a dozen of these in various electrical loads in my plant, they run 24x7 and are over 1 year old, no problems.
Question:	Does this include wiring requirments. the q and a make it seem as this is just the lcd for an remote unit
Answer:	You say you want to read the wattage on a 240 vac circuit. If you literally mean one circuit, like an air conditioner or electric range, then this is easily done. Connect the meter voltage input to the 240 volt supply and run one of the wires feeding your 240 vac load through the current transformer (CT). If the appliance also contains 120 vac loads, like a fan for instance, then you will see different readings depending on which of the 240 vac lines you pass through the CT, i.e., on one side you will only see the 240 vac load (such as a compressor) and on the other you'll see both the 120 vac and 240 vac load (compressor and fan).If you're talking about measuring the total current drawn by all household circuits (USA Service with 120 vac and 240 vac) then no, this will not give a true reading. Let's call the 120 vac circuits phase A (Black) and phase B (Red). If you mount the CT on the BLACK side, you'll read all the currents being drawn by the 120 vac loads on phase A PLUS the current being drawn by the 240 vac loads. If you mount the CT on the RED side, you'll read all the currents being drawn by the 120 vac loads on phase B PLUS the current being drawn by the 240 vac loads. If your desire is to measure only current drawn by the 240 vac loads, then this won't work because you'll also see current being drawn by the 120 vac loads. A possible work around would be to pass all of your 240 vac load lines (either all phase A or all phase B) through the CT. For example, suppose you want the total load for an electric oven, an air conditioner and a well pump. Find the wire leaving the breaker for phase A (or B, but don't mix) for each of those and pass them through the current transformer. This should give you an approximation of what those loads draw, but there may be some errors due to the power factors of the appliances.
Question:	Can this meter run for long periods of time when connected to a 7000 watt generator
Answer:	Dear customer, The cut-out size is 76*39mm. Here is pdf manual, https://images-na.ssl-images-amazon.com/images/I/71dzU96Kp9L.pdf Best regards, DROK
Question:	I would like to read wattage on a 240vac circuit, which in usa is two 120vac legs that are 180 degrees out of phase. Is there any easy way with 1 CT
Answer:	Dear customer, For now, there is no 200 amps model. Best regards.

Product description

DROK DC Power Meter 4-in-1 Battery Monitor with Clear 



Large LCD Screen



Specification :

Active Power test range: 0~10kW 

Energy test range: 0~9999kWh 

Voltage test range: DC 6.5~100V 

Current test range: 0~ 20A 

Working voltage: DC 6.5 ~ 100V 

Measuring Accuracy: 1.0 grade  



Display format:

1. Power: 0-2KW Test Range. Within 1kW, display 0.0-



999.9W; above 1kW, display 1000~2000W.

2. Energy: 0-9999KWh Test Range, within 10KWh, display 



0-9999Wh; above 10KWh, display 10-9999KWh

3. Voltage: 6.5-100V, display 6.50-99.99V

4. Current: 0-20A, display 0.00-20.00A 





NOTE:

1. This digital multimeter is only suitable for 6.5~100V 



DC power. 

2. Applied load should not exceed the rated power or 



current. 

3. Wiring must be correct. 

4. This digital multimeter is suitable for indoor ONLY.



Packing including: 

1x DC 6.5-100V 20A Digital Multimeter

• Parameter ---- For DROK DC 4-in-1 power meter, voltage test range: DC 6.5~100V, current test range: 0~20A, power test range: 0~2KW, energy test range: 0~9999KWH.
• Large LCD Screen ---- The digital multimeter has a large LCD screen which can clearly display voltage, current, active power, energy at the same time and easy to read at any time with the backlight.
• Multifunction ---- Overload alarm function: If the active power is greater than threshold, backlight and power will flash; Store energy data when power off, and also can be reset to 0; The blue backlight can be turned on/off manually.
• Easy to Hook Up ---- Equipped with a built-in shunt, the battery monitor only needs 2 wires in (DC + and -) and 2 wires out (The Load), all connections are via a 4-point terminal strip.
• NOTE ---- The applied load must not exceed the rated power or current. Wiring must be correct. Otherwise the meter will be damaged.

User questions & answers

Question:	Will this measure input wattage from the power source.say for example a solar panel
Answer:	No, it will not, it will only read the wattage and amperage you are consuming

• 7-IN-1 MULTIMETER --- measure and display voltage (0-90V), current (0-100A), power, battery capacity, amp-hour, watt-hour and time simultaneously.
• APPLICATION --- can be used as battery charge-discharge tester meter for automobile and car battery; as battery capacity monitor for photovoltaic system; as voltage meter, current meter, power meter, etc.
• BIDIRECTIONAL AMMETER --- the multimeter can detect current in dual direction without changing the wiring direction when used for monitoring charging and discharging.
• PROTECTION --- over-voltage protection, over-current protection, over-power protection, over-charged protection, time limitation, etc.
• OTHER FEATURES --- LCD color display; AH power off memorized function; time & AH resettable; calibration function; automatically/manually switch off LCD screen; with output control button to enable/disable output (requires a relay).

User questions & answers

Question:	I don't think i have all the cables. I have a black and red one for bat and i have 2 ofbthevwife white ones that connect then tigether ti communicate
Answer:	It comes with a multi conductor ribbon cable for about 12-18 inches. You may be able to extend that through some DIY soldering and creative wiring. I don’t know how that will affect the readings. You may be able to find a cable on Lin’s with the correct plugs and ribbon to reach your desired layout. Good luck.
Question:	is this weatherproof
Answer:	I haven't tested anything besides the low-voltage protection, but it seems like all the protections can be run simultaneously. You can pick and choose which one(s) to have "armed" as well as set each trigger parameter. The caveat is that it is a only a relay cut, without any automated reconnect. So if any of the protections are triggered, it cuts the external relay, then to reconnect you have to press OK on the "OUT" parameter to re-activate the relay.
Question:	In the application I have, I need to separate the sensor module from the display by about 3 m. Is it possible to lengthen the cable
Answer:	Roughly 3in
Question:	Does programming allow relay controller setting protections to run simultaneously OR is it only “choose one” from the list of monitoring options
Answer:	Dear customer, So far we don't have 200 amps module. Best regards, DROK

Product features

Buttons

If the relay (this product doesn't contain a relay) is connected, press the button ↑ ↓ to move the yellow cursor to OUT after powering on, and press OK to control the output. If the OUT light turns green, the output will be turned on; if the OUT light is gray, the output will be turned off. And the power state of the machine will be the state before the last shutdown. If the relay is not used, the output is always on and the OUT light won't work.

Protection function menu

Protection Function Menu:

OVP (Over-voltage protection): 0.01V-90V OCP(Over-current protection): 0.1-100A OPP(Over-power protection): 0.01W-9.99KW LOP(Low-voltage protection): 0.01V-90V OAH(Over-charge protection): 0.01AH-9999AH OFT(Over-time protection): 1min-99hour59min

For details on how to set each protection, please check User Manual [PDF ] from Product guides and documents on this page.

Hall Sensor

Pass the wire that transports current through the round hole of the hall sensor, then the current will be detected. The current can be detected in both positive and negative directions, which is safe and convenient.

NOTE:

1. Do remember to correctly wire the hall sensor, power supply and load according to the instruction.

2. Check the jumper connection, which needs to be connected on J4 when no extra power supply for the hall sensor, while on J3 with an extra power supply added to the hall sensor.

• Parameters: DROK ac power meter voltage measuring range is AC 80-300V, current measuring range is 0-100A, active power range is 0-30000W, electric energy range is 0-9999999kWh.
• Color LED Display: the watt meter panel adopts clear LCD displaying accurate voltage, ampere, active power and electric quantity measuring values.
• Special Design: our ac voltage display designed with a switch for clear electric energy and come with a 15.5mm CT, with fast measuring speed of 2 times/s.
• Auto Store & Memory Function: when power off, the electric energy data will be stored and memorized, can be reset.
• Note: 1). The wires of voltage input terminal (green) and CT secondary input terminal (blue) cannot be connected wrongly, or the meter will be damaged. 2). The screen cannot be squeezed during installation, or there will be garbled code or break code.

User questions & answers

Question:	I have a 220 volt 200 amp split phase service can I connect one to each side and get a accurate readings? Does it reset if you lose power
Answer:	Yes you can. One meter on each phase-to-ground should work fine. Very little current is going through the meter, that's why it uses the CT-Current Transformer that comes with this meter, which typically is 1000:1. Very convenient also that it does not reset but keeps the KWh measured. Value which can be manually reset to 0.
Question:	What advantage is there with this over the kind you plug in a wall outlet to measure different appliances
Answer:	This can go to 100A. Wall outlet type only goes to 15A. I needed to measure an appliance that peaks near 20A, so the 15A wall type was not enough.
Question:	ive seen some of these are good for 20 amps. How does that work on a 200 amp panel
Answer:	This particular unit will max out at 100 AMps.
Question:	Would this work on a 2 pole circuit? Or would you need a unit for each hot lead
Answer:	Can anyone clarify the wiring on this? I purchased for this use case. Drok says "this meter wont work for my application" this post and other reviews are saying otherwise. Maybe the review photos are a trick because it shows 240 input voltage but only measuring wattage from one pole. I tried putting the red & black L1 / L2 though the CT and then powering the meter using the same leads. It shows 240v input voltage, but the wattage doesn't move. Is this post suggesting I need to do the same thing but run red & black L1 / L2 through the CT in opposite directions? like crisscrossing? then power the meter off the black & red L1 / L2 and do not tap White (Neutral) & Bare (Ground)? I am struggling to understand the logic on how opposing flow of electricity will sum the current. Joel M states "put the ammeter coil around the common hot lead" which is confusing, because I would consider the White (Neutral) lead to be common & completing the circuit for both 120v poles. So do I power the meter off the red & black L1 / L2 then put the coil around the White (Neutral)? I know the proper solution is to buy two units and add the wattage from both 120v... but that's too much wiring and monthly effort. I would rather buy a unit that works for 2 poles or get this sum solution to work.

Product features

Clear Color LCD Display

• 52*26mm color LCD screen.
• Display voltage, current, active power and electric quantity values simultaneously.
• All data will be clear at a glance.

Power Energy Clear Key

• When power off, the electric energy data will be stored automatically.
• The accumulated electric energy can be cleared by the button above.
• Clear method: Hold press the button for 5 seconds, and the accumulated electric energy will be cleared.

Current Transformer

• Comes with a 100A CT.
• CT Inner Diameter: 15.5mm
• CT Outer Diameter: 27mm
• Note: Please use the attached CT to measure, otherwise the measured value may be inaccurate.

• PARAMETER ---- voltage test range DC 6.5~100V; current test range 0~100A; power test range 0~10kw; battery level test range 0~9999kwh.
• DATA GUARANTEED ---- with power-off storage function, all parameter will be stored automatically when powered off; accumulated energy data can be reset.
• OVER-VOLTAGE ALARM & SETTABLE ALARM VOLTAGE ---- if active power is larger than threshold, backlight and power will flash as an indicator.
• LARGE-SCREEN LCD ---- display voltage, current, power, energy at the same time.
• SWITCHABLE BACKLIGHT ---- backlight can be turned on/off manually.

User questions & answers

Question:	When used to measure the voltage and amperes fed to the battery as opposed to battery output can/should you leave out the shut? 1 output side also
Answer:	Dear customer, This meter is non-waterproof. Best regards, DROK
Question:	If I use 4 shunts in parallel, would device show 1/4 of actual current flow ? I need to measure up to 400 A draw
Answer:	Whereas I have not personally exceeded the maximum reading capability of this particular instrument, I have done so with many, many other ammeters, digital and analog with no consequence as long as the amount and time of overload is reasonable. The actual current being utilized by the meter's internal circuitry is in the micro amp range with little chance of heat damage. I'd assume that an overload indication such as a flashing display or , "err", "hhh" or "ovr" would be displayed.
Question:	Is this device weather tight, i.e., for installation in a sailboat control panel
Answer:	The add says voltage range is AC 80-300V. A standard conmen U.S. home outlet is only 110 to 120 volts. I was think it means it can't read below 80 volts are above 300 volts and only alternating current. AC = alternating current is standard conmen U.S. home power type. ("80-199V" Up to 300 or 199 volts) I am think that is someone's typo? Hope that helps.
Question:	What would happen with an occasional 200a draw? Would it just not measure it correctly or would it be permanently broken
Answer:	First, you are aware that it has a FLAT plug, which is not common for 220V. The picture show 236 so I assume that it will have a "2" digit which is also not common. Most voltmeters are have a ONE for the most significant digit, but it shows a "2" which means that it will read 200. Also note that the accuracy is stated at 1.5% +or- 2 digits. There have been complaints that the meter is off by 3 Volts...which is well within the specs and is typical for an AC voltmeter.. At 230, it could be off as much as 5 volts and still be in spec. Also this same voltmeter is available as a single voltmeter from Amazon, if you only need one, but you have to hunt for it.

Product features

DROK DC Power Meter

• Easy to install and use
• Voltage current power enery monitor DC 6.5-100V 0-100A
• Can be used to monitor battery bank status, such as RV solar panel system, travel trailer

4 in 1 Meter

Test range:

Voltage: DC 6.5~100V

Current: 0~100A

Power: 0~10kW

Energy: 0~9999kWh

Convenient Button

Store energy data when power off(can be reset to 0).

The blue backlight can be turned on/off manually

With overload alarm function (If active power is larger than threshold, backlight and power will flash

Dimension

Recommended cutout:

3.33"(L)x1.76"(W)x0.95"(H)

84.6mm(L)x44.6mm(W)x24.4mm(H)

Product description

Parameters: Working Voltage: 6.5~100VDC; Measuring Range: 6.5~100VDC; Rated Power: 20A/2000W; Measuring Accuracy: 1.0 grade. Test range and display format: Power Range: 0~2kW within 1kW, display 0.0~999.9W; above 1kW, display 1000~2000W. Energy Range: 0~9999kWh within 10KWh, display 0~9999Wh; above 10kWh, display 10~9999kWh. Voltage Range: 6.5~100V(display 6.50~99.99V), Current Range: 0~20A(display 0.00~20.00A). Note: This module is suitable for indoor, please do not use outdoor. Applied load should not exceed the rated voltage or current. Wiring order can't be wrong. Package Includes: 1x DC Power Multimeter.

User questions & answers

Question:	The button for backlight looks recessed. Do you need something like a pen to push the button
Answer:	Yes! And it is also used to set several parameters which is OK if your use is in a PERMANENT setup. In my case it is only a test meter, and it becomes a pain to just reset the Watt.Hr meter... Also everytime it is powered up the backlight comes up flashing... Neat instrument otherwise..
Question:	How do you hook up this gauge with its tiny wires/connections when all of the cabling in a solar system is much heavier gauge? seems like a botleneck
Answer:	All of the current ( AMPS) go through the SHUNT ( rated at 20 AMPS ) the small wires that go to the display unit from the SHUNT are only supplying very low current / low voltage to the display unit that gives it the value of the current ( AMPS ) that are passing through the SHUNT. I have the 100 AMP SHUNT version of this unit and it works very well. Again, all the current and the voltage your measuring with this unit are derived at the SHUNT and it can handle a lot of current and will NOT restrict or bottleneck the current or the voltage you want to measure. Hope this helps.
Question:	What is "dc in" in the diagram on the back of the device? is it battery
Answer:	This is the dc from the source that you want to monitor. It could be from a battery, power supply, solar cell, generator, etc.
Question:	Can the voltage be calibrated? Mine was accurate initially but now displays ~19v with a 12v line supply. The load side reads 12v with a multimeter
Answer:	Same thing happened after 2 months to mine!!! I was wondering what happened. My solar panels produce about 36 volts, now it's displaying 50-60, throwing the wattage reading way off. If anyone knows how to calibrate it, let us know please.

Product description

DROK DC 0-200V 10A Multifunctional Battery Reader



Specification:

Measuring Parameter:

Voltage, current, power, energy consumption, capacity, internal resistance, external resistance, running time and SOC.



Voltage:

Measuring range: 0-200V

Minimum resolution: 0.01V

Measurement accuracy: 1%

Current:

Measuring range: 0-10A

Minimum resolution: 1mA

Measurement accuracy: 1%

Power:

Measuring range: 0-2000W

Minimum resolution: 0.01W

Measurement accuracy: 1%

External Resistance:

Measuring range: 0-1000Ω

Minimum resolution: 0.1Ω

Measurement accuracy: 1%

Internal resistance:

Measuring range: 0-999mΩ

Minimum resolution: 1mΩ

Measurement accuracy: 1%

Capacity:

Measuring range: 0-1000AH

Minimum resolution: 1mAH

Measurement accuracy: 1%

Running time:

Measuring range: 0~999h

Working Temperature Range: -20℃~60℃



Working Mode:

Normal display mode & hibernate mode.



Application:

This DC multimeter display panel can be widely used for auto, RV, solar system, industrial assembly line, etc.



Note:

1. This multifunctional meter is only suitable for indoor use, please do not use it outdoor.

2. The power of the load cannot exceeds the rated power.

3. The wires should be connected in strictly accordance with the wiring diagram.



Package Included:

1x DC Multimeter Panel

• 9-IN-1 MULTIMETER --- measure and display voltage, current, power, energy consumption, capacity, internal resistance, external resistance, running time and SOC simultaneously on one interface.
• MEASURING RANGE --- Voltage 0-200V, Current 0-10A, Power 0-2kW, Energy Consumption 0-9999kWh, Capacity 0-1000AH, Internal Resistance 0-999mΩ, External Resistance 0-1000Ω, Running Time 0-999h.
• DISPLAY --- STN LCD display, with switchable backlight, provide a better visual experience whenever day or night.
• FEATURES --- high-precision chip for accurate measurement; no screw installation; strengthened nylon case.
• WIDE APPLICATION --- widely used for auto, RV, solar system, industrial assembly line, etc.

User questions & answers

Question:	Hi, will this display show charging (+) and discharging (-) current when connected to a battery? thanks
Answer:	When connecting to a battery, it will show the charging current but not sure it it can show the discharging at negative current, ideally it should work.
Question:	Can i increase the current limit by adding a shunt to the circuit
Answer:	I would not try this Theory says if you halved the shunt resistance you could double the current. However, the meter's displayed current will now be off by a factor of two. In addition, the internal wiring will need to increased in size to properly handle the additional current. DROK meters designed for more that 10 Amp utilize an bulky external shunt capable of handling the increased current and power requirements.
Question:	Whats the biggest gauge of wire that can fit on the connector? A side from the wire that came with it
Answer:	I was able to get 14 gauge in mine. I'm not sure if 12 gauge would fit or not.
Question:	I got 4,000wtt inverter,i want to use this but only show up to 2,000watt this not show if got all power dicharge from my inverter
Answer:	You have a 4000W inverter? [P/V = I (P is 4000W) (V is voltage), 4000W/115V = 34.8 (I) Amps.] Youll smoke it. You want a model with an external Shunt.

• PARAMETER --- measuring voltage DC 4.5V-100V; current 0-50A.
• APPLICATION --- monitoring storage battery, solar panel, model railroad, RV, motorcycle, house batteries, motor, etc.
• DISPLAY --- 0.39'' crisp and bright LED screen displays voltage & current value.
• CALIBRATION --- with voltage & current calibration potentiometer.
• NOTE --- the shunt should be connected when wiring, otherwise the meter will be burnt.

User questions & answers

Question:	Do you have this with a stronger 125 or 150amp shunt
Answer:	he is asking if vender has this device in 125 or 150 amp capacity i don't know if this vender has this model but they are for sale as i have got them be four
Question:	I just want to measure volts and amps coming in from my solar panels. Do you have any suggestions? Also do I need to connect the load to work
Answer:	The voltage will read out with our without a load. The amps only give you the current coming from your solar panel so if there is no load, the amps will be zero
Question:	So where do you connect the power source? I don’t find any connections
Answer:	Is the problem that you don't understand the schematic? The positive power source lead should go to the load (motor, etc). The shunt bar goes inline (it is part of the load circuit) on the negative lead back to the power source. After that, just hook up the display to the shunt bar - and one lead back to the power source positive - and you should be good. When you say you don't find any connections, it brings up different questions. Do you have both pieces shown in the listing pictures? Are you looking for answers on a digital voltmeter/ammeter? The only connections on these pieces are screw terminals. There should be a wire connection under every exposed screw. One more item - if the problem is the schematic, the one shown on the amazon listing in the pictures is cleaner than the one on the back of the display. Take a minute to look at it. Hope this isn't too simplistic. Your question makes me go down a couple of different roads. Good luck.
Question:	Power source? Does this run off the power of the circuit being tested or does it need a separate power source? Is it "self powered
Answer:	I just tested it with a 9v batt. it operate off of the circuit being tested.

Product features

LED display shows volt and amp

The multimeter can clearly display voltage and current at the same time, red for voltage, green for current.

Three terminals

DROK volts amp tester is equipped with three terminals. The power supply is taken from the test loop. No additional power supply is required.

A shunt 50A/75mV

The current range of the meter is 0.0-50.0A.

NOTE: If the current is higher than 20A, a shunt is required, otherwise the meter will burn.

Back cover

It's safer with the back cover

Product description

DROK 7-in-1 DC Multimeter Panel



Measuring Range:

Voltage: DC 6V-75V (self-powered)/ DC 0-12V (external power source)

External Power Source Voltage Range: DC 6-60V

Current: 0-30A

Capacity: 0.001AH-65000.00AH

Energy: 0.00KWH-99999.9WH

Running Time: 0-100h

Power: 99KW

Temperature: 1-100℃



Accuracy:

Voltage: ±1% + 2 digits

Current: ±2% + 5 digits

Temperature: ±1℃

Measuring Rate: 5 times/second



Protection:

OVP (Over-voltage protection): 0.01V-120V

LVP (Low-voltage protection): 0.01-120V

OCP (Over-current protection): 0-30A

NCP (Discharging over-current protection): 0-30A

OTP (Over-temperature protection): 0-100℃



Display Panel Dimension: 78*42*26mm/3.07*1.65*1.02 inch

Measurement Panel Dimension: 87*49*24mm/3.43*1.93*0.94 inch



Note:

If the voltage of the power supply (battery) to be detected is within DC 6V~75V in normal operation, the meter can be powered by the battery.

If the voltage of the power supply (battery) to be detected is beyond DC 6V~75V in normal operation, it needs a external power source to supply power to the meter. External power source voltage range is DC 6V-60V.

 

Package Included:

1x DC Multifunction Meter

• 7-IN-1 MULTIMETER --- measure and display voltage (self-powered DC 6V-75V / external power source DC 0-120V); current (0-30A); power (99kw); capacity (0-65000.00AH); energy (0-99999.9WH); running time (0-100h); temperature (1-100℃). External power source voltage range DC 6-60V.
• APPLICATION --- can be used as battery charging-discharging tester meter for automobile and car battery; as battery capacity monitor for photovoltaic system; as voltage meter, current meter, power meter, etc.
• BIDIRECTIONAL AMMETER --- detect current in dual direction without changing the wiring direction when used for monitoring charging and discharging.
• PROTECTION --- over-voltage protection; low-voltage protection; over-current protection; discharging over-current protection; over-temperature protection.
• OTHER FEATURES --- LCD color display; AH & WH power off memorized function; time & AH resettable; calibration function; with output control button to enable/disable output.

User questions & answers

Question:	How long is the ribbon cable
Answer:	Dear customer, It only show centigrade temperature. Best regards, DROK
Question:	Do you make a unit just like this but rated for 200-amp???...impossible to find anything on Amazon
Answer:	Yes.
Question:	Does the temperature read in F, or just C
Answer:	Absolutely. I installed this this meter on my motor home house batteries to monitor the batteries and the charging voltage while driving and while plugged into shore power. As long as you are within the stated voltage range you will be fine.
Question:	does it come with a temperature sensor
Answer:	There is no easy way that I can conceive of (I have an AA degree in electronics, for what that is worth). But, if you put one or more layers of tissue paper (or maybe a panel from a white plastic bag) over it, that will dim the display quite a bit while it will still be perfectly readable (I've just tried the tissue paper on your behalf!). BTW, I put an on/off switch in line with the power wire anyway when I installed it in my RV, both to completely remove annoying light and also save a teeny bit of electricity.

Product description

Parameters: Working Voltage: 6. 5 ~ 100VDC Measuring Range: 6. 5 ~ 100VDC Rated Power: 50A/5000W Measuring Accuracy: 1. 0 grade Before using the 50A current shunt, please set the scale to 50A(default 100A): Step 1: Long press the button, and release it when "Curr" shows on the power area. Step 2: At this time the current area displays "100 A", short press the button to choose "100 A" or "50 A", this meter requires 50A shunt. Step 3: Long press the button to exit the setting mode or the setting will automatically save and exist if no key operation in 3 seconds. Test range and display format: Power Range: 0~5kW within 1kW, display 0. 0~999. 9W; above 1kW, display 1000~5000W. Energy Range: 0~9999kWh within 10KWh, display 0~9999Wh; above 10kWh, display 10~9999kWh. Voltage Range: 6. 5~100V (display 6. 50~99. 99V) Current Range: 0~50A (display 0. 00~50. 00A) Note: This module is suitable for indoor, please do not use outdoor. Applied load should not exceed the rated voltage or current. Wiring order can't be wrong. Package Includes: 1x DC Power Mustimeter

User questions & answers

Question:	what is the draw
Answer:	I'm not sure to what you are referring, but I know the meter measures voltage and current draw. So if you are referring to current draw, then that is the amount of current amperage going through the meter and being drawn by your circuit.
Question:	i bought the 50 amp version, how do i set the meter to 50 amp not the 100amp default
Answer:	As noted in the included instruction sheet, long press the button until it displays "Curr". Then short clicks will toggle between 100A and 50A shunt modes. The either long press,or just wait, and it will store the setting.
Question:	Comes with the shunt
Answer:	There are several VERY different models on this product page! The 50A and 100A versions come with external shunts that produce a 75mV drop across the sense leads at the rated current. The meter is identical for those two versions. See my review for pictures.
Question:	This comes wirth the shunt
Answer:	There are several VERY different models on this product page! The 50A and 100A versions come with external shunts that produce a 75mV drop across the sense leads at the rated current. The meter is identical for those two versions. See my review for pictures.

Product description

Parameters:

Rated power: 20A/4500W

The maximum current: 20A

Voltage measuringrange: AC 80V~260V

Frequency measuring range: 45~65Hz

Power measuring range: 0.01W~4500W

Energy measuring range: 0.01Wh~99999kWh

Current measuring range: 0.01~20A

Voltage precision: ±1%

Current precision: ±2%

Power precision: ±2%

Product size: 89.5x54.5x28mm

Product weight: 67g



Notes:

1. The total power resistive load of the connected appliances cannot excess the rated power, otherwise it will be damaged, even fire.

2. 20A electrical tester is built-in shunt, if it doesn't display power and the power factor, means the wiring connection is wrong, please check the wiring diagram.

3. Except for the wires, other objects should not be inserted into the connection hole; tightening the screws.

4. No waterproof function, only used in dry indoor environment.

5. Far away from children and fire.



Package Includes:

1x AC Multimeter

• 6 in 1 METER: It is a compact, lightweight and functional multi-meter, with large-screen LCD display, can display voltage, current, power, power factor, energy and frequency at the same time.
• MEASUREMENT RANGE: DROK digital multimeter voltage measurement range is AC 80-260V, current measurement range is 0.01-20A, frequency measurement range is 45-65Hz, energy measurement range is 0.01Wh-99999kWh.
• LCD & KEY: display has great visibility, very bright and clear; the Blue backlight can be turned on/off by giving a short press on the front key located on the right side of the item; give a long press on the key for 3 sec to enter the over-load power setting; hold press for 5 sec, system reset, cumulative capacity turns zero, over-load power setting restore default value.
• STORE DATA & COVER: if there are no any key operation in 5s, it will exit and store the data; the multi-functional meter cover is made of PC flam retardant material, which will be more safe for using.
• BUILT-IN CT & POWER: the ac multimeter is designed with built-in CT, no need to buy separately; powered by power grid directly(AC 220V), no need external power supply.

User questions & answers

Question:	How far away can the coil be mounted away from the display? May I extend the wires say, 20 feet
Answer:	Yes, you can do, but it will have measure from 1 PHASE
Question:	My device will not display the power. I get all other readings correct, but power is always 0. Is there a setting that needs to be turned on to work
Answer:	If wired correctly it will only display power with a load connected to it and then only when sufficient current had passed through it to change the power display from zero
Question:	Is there a version of this that can accept 100A with external current sensor
Answer:	There are a couple on Amazon. This is one of them. https://www.amazon.com/dp/B07K3L7M29/?coliid=I18J08HDLC3AY6&colid=1NAQ1QH9LHORA&psc=0&ref_=lv_ov_lig_dp_it
Question:	Can this be connected to the generator power switch to measure consumption
Answer:	You can as long as the electricity is from ac power source.