Power Watchdog Hughes Autoformers Dual Color DVM Dual Color Digital Voltmeter

See if you are getting proper voltage with just a glance! The dual color digital voltmeter is highly accurate. If the LED light is green, this means your voltage is in an acceptable range. If the LED light is red, the voltage may be damaging to your RV! About this item use this device to monitor your voltage with digital accuracy simply plug in to any outlet in your rv to measure ac voltage also suitable for boat/marine, household or office usage measuring range: ac current from 90 to 132 volts simple design- green is good, red is bad voltage (voltage below 108 or above 132 can damage your electrical devices!) Fit type: Universal Fit See more product details