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DROK Charge-Discharge Multi Testers, DC 0-120V 300A Power Meter with Color Digital LCD Display, Battery Volt Amp Power Capacity Temperature Monitor, Voltmeter Ampmeter

4.0 4.0 out of 5 stars 626 ratings

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0-120V 300A Curve Upgrade

Purchase options and add-ons

Brand DROK
Power Source Battery Powered
Style Digital
Color Black
Measurement Type Ammeter, Voltmeter, Multimeter

About this item

  • Upgrade Version --- Clearer Display, Volt Amp Curve, Wider Measuring Range, Temperature Measure Function.
  • 9-IN-1 MULTIMETER --- measure and display voltage (0-120V), current (0-300A), power, battery capacity, amp-hour, watt-hour, time simultaneously, temperature, and charging figure
  • 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, over temperature etc.

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Product details

  • Package Dimensions ‏ : ‎ 5.28 x 3.94 x 3.15 inches; 6.7 ounces
  • Date First Available ‏ : ‎ December 25, 2021
  • Manufacturer ‏ : ‎ DROK
  • ASIN ‏ : ‎ B09P661829
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.0 4.0 out of 5 stars 626 ratings

Product Description

DROK DC 120V 300A Multimeter

Specification:
Measuring Parameters: Voltage, current, power, battery capacity, amp-hour, watt-hour, time.
Voltage Measurement Range: DC 0-120V
Current Measurement Range: DC 0-300A
Voltage Measurement Accuracy: ± 1% ± 5 digits
Current Measurement Accuracy: ± 2% ± 5 digits
Display Resolution: 0.1A, 0.01V,0.01AG, 0.01H(1 min)
Measurement rate: 20 times/second
Display: 1.8 inch LCD color screen
Size(Display Board): 78*42*26mm/3.07*1.65*1.02 inch
Size(Measuring Board): 56*36*34mm/2.21*1.42*1.34 inch
Hall Sensor Size: 79*42.5*26.5mm/3.10*1.68*1.04 inch

Protection Function:
OVP (Over-voltage protection): 0.01V-120V
OCP(Over-current protection): 0.1-300A
OPP(Over-power protection): 0.01W-9.99KW
LOP(Low-voltage protection): 0.01V-120V
OAH(Over-charge protection): 0.01AH-9999AH
OFT(Over-time protection): 1min-99hour59min

Application:
As battery charge-discharge monitor for electric car;
As battery power energy level indicator for photovoltaic system;
As battery voltage current power tester meter.

Other Function:
AH power off memorized function;
Time & AH reset function;
Calibration function;
LCD screen can be switched off automatically or manually.
With output control button to enable/disable output (requires a relay).

Package Includes:
1x Charge-Discharge Monitor
1x Hall Sensor


From the brand

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Customer reviews

4 out of 5 stars
4 out of 5
626 global ratings

Customers say

Customers like the accuracy and quality of the battery monitor. They say it's an excellent little battery meter. However, some customers have reported issues with the ease of installation and performance of the product. They mention that the instructions are very limited and difficult to read. Customers also have issues with accuracy and reliability. Opinions are mixed on appearance and ease of use.

AI-generated from the text of customer reviews

19 customers mention15 positive4 negative

Customers like the calibration of the electric circuit testing device. They say it's accurate enough, useful, and easy to calibrate. Some mention that the voltage and current are more accurate than expected, and the amperage reading is accurate. They also say the meter is clear and easy for testing.

"The device appears so far to be accurate and consistent, once you manage to figure out how to calibrate it properly...." Read more

"It's accurate enough (very similar to my BMS and bench power supply readings), but I can't figure out what half the settings do...." Read more

"Its exactly 2 weeks since the monitor been in operation. It is very accurate when it comes to measuring the voltage and amps, you can even calibrate..." Read more

"...Here's the game they're playing... It has settings for adjusting voltage calibration, getting accurate current bidirectional measurement, and lots..." Read more

17 customers mention15 positive2 negative

Customers like the quality of the electric circuit testing device. They say it does a very good job for the price, has a lot of function for the money, and is nice equipment. Some mention that the product has adequate features and performance. Overall, most are satisfied with the quality and performance of the product.

"...(Watt Meter DC 0-300V 200A ) for applications, it it does a very good job for the price...." Read more

"...They will not explain that instructions. Other than that, good unit for the cost." Read more

"...Good value for the price." Read more

"I am pleased overall with this product. The price was right...." Read more

15 customers mention14 positive1 negative

Customers like the battery monitor. They say it's a great basic meter for determining amps and watts. They also say it is very useful for casual battery monitoring and provides a good indication of state-of-charge. Customers also mention that it'll well worth the information regarding the status and health of the battery.

"So, the meter is fantastic, I use it to monitor my LiPO battery bank on my sailboat (attached picture - that was first draft installation)...." Read more

"...There's a little bit of a learning curve with it, but it's well worth the information regarding the status and health of your batteries, charging..." Read more

"I love that this inexpensive product provides a good indication of state-of-charge...." Read more

"This is a very nice basic meter for determining amp/watts. The instructions are slightly confusing the first time through, but this is no big deal...." Read more

41 customers mention24 positive17 negative

Customers are mixed about the ease of use of the electric circuit testing device. Some mention it's super easy to calibrate and work like a champ, while others say that the first unit they received did not work. Some customers also say that parts turned black and are no longer usable. Overall, opinions are mixed and depend on individual preferences.

"...It worked well enough and Im keeping it." Read more

"The first unit I received did not work, but the vendor was quick to replace it and the second is working perfactly...." Read more

"...I will check that later.In the meantime, I am still pleased with the performance. I use it as a sanity check on a small trolling motor battery...." Read more

"The meter was working well for a few minutes. Then I fully charged the battery the meter was connected to...." Read more

13 customers mention9 positive4 negative

Customers are mixed about the appearance of the electric circuit testing device. Some mention that it really is very nice and has more capabilities than they expected, while others say that it looks very cheapy and has a strange design decision.

"...It really is very nice and has more capabilities than I expected, it was just hard to figure out...." Read more

"very good, low cost battery status indicator. Used to display status of 2500 watt portable power unit...." Read more

"...Just thought I would report due to my disappointment with the layout of the display and not being able to contact the company to try and help them..." Read more

"...Nice unit otherwise. Accuracy seems good, both on voltage and DC current." Read more

51 customers mention9 positive42 negative

Customers find the installation of the electric circuit testing device to be difficult. They mention that the instructions are very limited, difficult to read, and lacking. Customers also say that the documentation is of very little help at the detail level. They say that it's confusing to configure, and the interface is not intuitive.

"I have two of these. Yes the manual is a little difficult, but how well will you write a manual in a different language?..." Read more

"...The display is mostly okay however, the interface is not intuitive and the directions, while not terrible like other cheap electronics, is not easy..." Read more

"...You have to do this kind of sleuthing because (1) the documentation is of very little help at the detail level ... you're left to guessing and..." Read more

"...Why 2 stars? Lack of documentation, and poor communication.The box comes with a useless instructions and wrong info...." Read more

21 customers mention0 positive21 negative

Customers are dissatisfied with the accuracy of the electric circuit testing device. They mention that it doesn't measure voltage very accurately, has limited accuracy at low current, and gives inaccurate current readings. Some say that the battery percentage is not accurate.

"...The units are small and a challenge to configure, but once done, you will like it...." Read more

"...Seems like the current is hooked up backwards ... but you can't fix it.I've kept all three units kind of as an adventure game...." Read more

"...The battery percentage is not accurate, but! The numbers are correct, so I just go off the numbers and ignore the battery percentage...." Read more

"This unit does not seem to accurately detect small current flows. I ran my 100ah Lifepo4 battery down (11.3v) to the point the bms shut it down...." Read more

19 customers mention0 positive19 negative

Customers are dissatisfied with the performance of the electric circuit testing device. They mention that it is poorly engineered, faulty, and unreliable. The display fails after a few uses and is garbled after few minutes. Customers also say that the device is not what it appears to be and is cheap junk.

"This unit is not what it appears to be...." Read more

"The first unit was defective display it goes all garbally after a few minutes and then you have to unplug for 30 minutes to get it to look good again..." Read more

"...However, the display is not capable of displaying the negative sign, so it is not capable indicating which direction the current flowing...." Read more

"...The DROK meters are sensitive in a very bad way and unreliable and I have given more than a fair shot." Read more

No AMPs, Reports voltage, and state of charge, just not amps
2 Stars
No AMPs, Reports voltage, and state of charge, just not amps
Sometimes the display stays on for a few while im monitoring volts, and sometimes it goes off seconds after turning the screen on. Shows current battery state, and exact voltage. However it rarely reports amps, it does show when amps are going in or out with the arrows. For just these working features I could have purchased a cheaper one, just don't have the time to return it.
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Top reviews from the United States

Reviewed in the United States on November 13, 2020
Size: 0-90V 100AVerified Purchase
14 people found this helpful
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Reviewed in the United States on July 4, 2023
Size: 0-90V 300AVerified Purchase
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5.0 out of 5 stars A good little battery monitor....
Reviewed in the United States on July 4, 2023
The first unit I received did not work, but the vendor was quick to replace it and the second is working perfactly. I will update this post if anything changes. I am building a solar generator and added a second battery monitor with different information on it. Still have a little more to do, but it works good so far.
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Reviewed in the United States on December 7, 2023
Size: 0-90V 300AVerified Purchase
One person found this helpful
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Reviewed in the United States on January 1, 2024
Reviewed in the United States on April 30, 2019
58 people found this helpful
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Reviewed in the United States on December 3, 2023
Size: 0-90V 100A with 2m WireVerified Purchase
4 people found this helpful
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Reviewed in the United States on August 5, 2022
Size: 0-90V 300AVerified Purchase
5 people found this helpful
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Top reviews from other countries

Jeff
3.0 out of 5 stars Voltage, Current & VA
Reviewed in Australia on May 9, 2021
Size: 0-90V 100AVerified Purchase
Sarah Livingston
4.0 out of 5 stars ok
Reviewed in Australia on January 15, 2021
Size: 0-90V 100AVerified Purchase