20a Backlight Multipurpose Power Factor Circuit Measurement Overload Alarm

Circuit measurement meter: with overload alarm, while current lower than overload power, alarm will reset, current meter; Power meter: to display voltage, current, power, electric quality, power factor and frequency, energy meter; Voltage meter: adopt flame-resistant material, safe to use, multifuctional wattmeter; Note: you need to install mutual inductor in order to work normally, wiring direction needs to be the same as arrow direction on mutual inductor, voltage and current meter; Wattmeter: suitable for fridge, tv, air-conditioner, tank, and etc

What's in the box
1 x Electrical Installation Accessories