Features It has a memory function can store measurement data when Built-in current shunt design, convenient to use and save your time Large LCD display shows voltage, current, active power, energy at the same time Short press the key to turn the backlight on or off DC voltmeter is designed with power alarm threshold, overload alarm function Specifications: Brand: PEACEFAIR Model No.: PZEM-031 Operating voltage: 6.5-100V DC. Voltage Test Range: 6.5-100V DC Rated power: 20A/2000W Measurement accuracy: 1.0 Weight: approx. 78g Test RangeDisplay formatPower0-2kW < 1kW, 0.0-999.9W ≥1kW, 1000-2000WEnergie0-9999kWh < 10kWh, 0-9999Wh ≥10kWh, 10-9999kWhVoltage6.5-100V6.50-99.99VCurrent0-20A0.00-20.00A. Features: Large LCD display shows voltage, current, active power and energy at the same time. The DC voltmeter is designed with power alarm threshold, overload alarm function. It has a memory function can store measurement data when power off. Short press the key to turn the backlight on or off. Built-in current shunt design, convenient to use and save time. Package includes: 1 x Voltage Current Meter Note: This module is only suitable for 6.5~100V DC power supply. This module is suitable for indoors, not outdoors. The applied load cannot exceed the rated voltage and current. Wiring order cannot be wrong. Built in current shunt design, no need to connect outside. Package List