PZEM-025 DC5-12V Current Voltage Meter Digital Display Voltmeter Multifunctional Tester Item Type: Digital Display Voltmeter Model: PZEM-025 Material: PBT Specification: 100A Producr Size: Approx. 85.3x44x32mm / 3.4x1.7x1.3in Backlit Control: short press the button to turn on or off the backlight Energy Consumption Reset: long press the button for more than 3 seconds to reset energy consumption Current Indication: the current has a direction indication, the "-" sign indicates the reverse direction, otherwise it means the forward direction Energy Consumption Indication: energy consumption has direction indication, "-" sign indicates reverse direction, otherwise it means forward direction The direction of energy consumption accumulation is judged according to the direction of the current, the current is positive, the energy consumption increases, the maximum is 999KWH, and the overflow is maintained, unless manually cleared; the current is reversed, the energy consumption decreases, the maximum is -999KWH, and the overflow is maintained, unless manually cleared. Way of Working: Data Saving: energy consumption and backlight status can be saved when power off Application Scenarios: high and low power distribution cabinets, display racks, photovoltaic inverters, assembly line testing, electronic maintenance, electronic DIY, etc.