ITEM NAME:100A DC Digital Watt KWH Current Power Energy Meter Ammeter Voltmeter 7-100 Product Description Description: Function: Electrical parameter measurement function (voltage, current, active power, energy) Voltage alarm function (over voltage alarm threshold, backlight and voltage flashing to alarm). The reset function of energy key. Store data when power off. Large-screen LCD (display voltage, current, active power, energy at the same time) Backlight function. Specifications: Voltage Measuring Range: DC 6.5 ~ 100V Current Measuring Range: DC 0 ~ 100A(Max. Power 10kW) KWH Measuring Range: 0 ~ 9999kWh KWH measurement is nonvolatile with power interruption. It can be reset to zero via reset button. Operating Temperature: -10 ℃ ~65 ℃ Operating Humidity: 10~85% RH You can turn on/off the blue back light manually. Included: 1 x LCD Panel DC Power Meter 1 x Shunt.(It can be reset to zero via reset button. Power 10kW). The reset function of energy key. 12 months Warranty. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.