1. The module designed for measuring the ac voltage by connecting to the switch plug directly or the other kind of switch plug.
2. It is suitable for measuring the AC voltage in many place, such as office, factory, laboratory, household and so on.
3. You can use this item to monitor voltage of appliances; when this volt gauge show too high or too low voltage, you can choose
to close your appliances or equipment so as to prolong life of your appliances.
Measuring accuracy: +/-1.5%, +/- 2 word
Measuring range: AC 80-300V
You can use this item in RV as a way to view voltage to prevent issues with appliances
The product can show the voltage of power by connecting to the plug of AC 110V/220V
It is important for you to let the children away from the product
Don't use the product in a damp environment
1. Please use the phillips screwdriver to open the outer case of the volt meter;
2. later you can use phillips screwdriver in small size to adjust the potentiometer;
3. if display voltage is too high, then please adjust potentiometer in counter-clockwise direction;
4. if display voltage is too low, then please adjust potentiometer in clockwise direction.
2 x Voltmeter