All in 1: - No need to worry about your precious home appliances because this device that will protect them from over/under voltage and over current failures with action time of 0.1 sec. Adjustable NatHaosen International Trading Company Limitedure: - As protection range differs with region and requirement, this device comes with the provision of adjusting settings of all types of values as per your requirement. Features: - Over voltage protection (85-300V), under voltage protection (85-300V), over load protection (1~63A) and energy meter (0-9999 kWh); everything in one single device. Most prominent and best solution for home protection Auto Reconnect: - In case of voltage imbalance, the device instantly cut off the power supply. When supply is back to normal, the device automatically reconnect supply within 1~512 sec (adjustable) Energy Meter: - It is not limited to protecting your home appliance, get real time information of active power (W), total energy(kWh), voltage(V) and current(A) on the LCD were readings are visible even in dark Note: - In case of constant tripping, turn off the malignant load protection (Resistive load limit). It can be adjusted from 0.5A~5A and it trip when sense instant increased load. DIY: - Wiring that can be done without any third party help