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ZRM Digital Voltmeter Ammeter Display Review

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
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Description of ZRM Digital Voltmeter Ammeter Display

Type: Voltmeter & Ammeter 2 in 1 Tester, Voltage Measuring Range: DC 0.0V-100V, Current Measuring Range: DC 0-50A. 2 Color LED Dispaly: Adopting three 0.28" LED digital tube, red + blue dual voltage and current display, automatically moving, bright and clear, convenient for you to check the measured result. Function: Can display voltage and current at the same time in such a small size, all-cover shell, safe, reliable and dustproof, with reverse connection protection, high precision, high reliability, for high-end applications. Easy to Use: Come with 2 x cables and 1x 75 milli-ohm Current Shunt, which are easy to connect. Application: Can be widely applied to monitoring voltage of storage battery, mastering voltage state of storage battery, and measuring voltage and current of other devices.

Reviews

Global ratings 3
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  • 4
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Type of review

Revainrating 3 out of 5

It's not worth it! for voltage tester

I bought this to count electricity for my college project and I couldn't get it to count properly. The voltage readings were fine, but the amps were completely turned off. I would not recommend that.

Pros
  • Elegant design
Cons
  • There are even more interesting options.

Revainrating 4 out of 5

the current measurement refers to the power return.

I had to redesign my application to account for the fact that the current measurement is not independent of the reverse power supply connection. This is the first time I've tested an ammeter that doesn't float. It is expected that the voltage is measured against ground, not the current. Still worth the money, but this surprise required some extra engineering to make it work.

Pros
  • Easy setup
Cons
  • No

Revainrating 4 out of 5

This one worked after 4 tries

I first bought a 10 amp model with a current shunt built in, there are 4. None of them read the amps correctly and set them within reasonable limits. I decided to try this provider and the 50 amp version with the shunt removed. This worked very well. I was able to adapt it to my certified meter. Even with a 50 amp shunt this thing will read in milliamps when the LED is connected to a load. Lucky enough. The only reason I didn't give it 5 stars is because you need to get the correct wiring…

Pros
  • Stylish and modern design
Cons
  • Modern