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ac voltage display: drok 3pcs digital led display voltmeter for ac 60-500v voltage monitoring, 110v 220v volt detector with green red yellow signal indicator light panel logo

AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel Review

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Revainrating 3.5 out of 5  
Rating 
3.7
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img 1 attached to AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel
img 2 attached to AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel
img 3 attached to AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel
img 4 attached to AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel

Description of AC Voltage Display: DROK 3pcs Digital LED Display Voltmeter for AC 60-500V Voltage Monitoring, 110v 220v Volt Detector with Green Red Yellow Signal Indicator Light Panel

DROK ac voltage display input voltage range is AC 60-500V, measuring voltage range is AC 60-500V, voltage measuring error is 2V, working environment temperature range is -40-55°C. It can be used as signal indication, warning signal, accident signal and other signals in the line of electric power, telecommunication, machine tool, ship, textile, printing and mining machinery. The lampshade of the voltmeter is made of high strength polycarbonate, has good impact resistance, built-in screw-type wiring, which makes more safe and convenient terminal. The volt panel is with long service life, low energy consumption, small size(490x270mm), light weight features. Package includes three mini digital voltmeter, one is green, one is red, and the other is yellow.

Reviews

Global ratings 3
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Type of review

Revainrating 1 out of 5

do not work at a voltage of 20 volts - are marked as from 60 volts.

I needed several of these devices to monitor various points of 24VAC power in the device. They only flicker on 24V. I noticed that they run on the 60-500 volt side, so apparently they're not rated for 20V. Will have to send them back. The notion that they are good for 20-500 volts is just wrong. The seller needs to change the description so it's not a lie.

Pros
  • Beautiful design
Cons
  • Vulgarity

Revainrating 5 out of 5

Great solution for monitoring your generator and grid

Like others here I installed these next to my circuit breaker to hook up my generator. In my photo, the green pressure gauge was used for the supply network and the red pressure gauge for the generator (does not work in the photo). I have set up a "lockout" scheme so that only one of the two power supplies in the house is running at any one time, but it helps to know when mains power is restored so the generator can be turned off (otherwise you'll have to go to your disturbing neighbors or…

Pros
  • Easy to read control panel
Cons
  • Contact seller

Revainrating 5 out of 5

Great Idea!: Voltage Tester

I needed a way to monitor the voltage in an air conditioner, both the thermostat control voltage and the compressor voltage. They worked great and I assembled them into a small AC unit monitoring station. The accuracy at the low level is only about 10%, but that's not a problem as I was looking for a relative value first. In my application, all of the meters operated in the full range of 28 to 240 VAC. They have good bright displays and are easy to read. Very easy installation and simple but…

Pros
  • Excellent Overall
Cons
  • Doubtful