Review on π Enhance Your Power Management with Hughes Autoformers DVM1221 Digital Volt Meter by Vera Gashi
I'm looking at this volt meter to make sure it's at or near 120 volts before turning on things like HVAC
This little suction cup works great. I live in an RV and travel across the country. When connecting to the power supply in the motorhome, I plug this voltmeter into the socket on the rig. As soon as 50 amps are being applied to the installation, I look at this volt meter to make sure it's at or near 120 volts before turning on things like the air conditioner, refrigerator, or water heater.
- . Fit: Universal Fit
- Negative is present
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