Features:Large screen LCD displays voltage, current, active power, energy at the same time.The DC voltmeter is designed with power alarm threshold, overload alarm function.It has memory function can store measure data when power off.Short press the key to turn on or off the backlight.Built in current shunt design, convenient for using and saving your time.Specifications:Brand: PEACEFAIR Model:PZEM-031Working voltage: 6.5-100V DCVoltage test range: 6.5-100V DCRated power: 20A or 2000WMeasurement Accuracy: 1.0Weight: Approx. 78gTest RangeDisplay FormatPower0-2kW1kW, 0.0-999.9W1kW, 1000-2000WEnergy0-9999kWh10kWh, 0-9999Wh10kWh, 10-9999kWhVoltage6.5-100V6.50-99.99VCurrent0-20A0.00-20.00ANote:This moduleis only suitable for 6.5-100V DC power.This module is suitable for indoor, not outdoor.Applied load cannot exceed the rated voltage and current.The wiring order cannot be wrong.Built in current shunt design, don't need to connect outside.Packing Included:1 x Voltage Current Meter