Features • Large Screen Display: LCD screen shows voltage, current, active power, and energy simultaneously for easy monitoring of your system • Advanced Alarm Functions: Equipped with power alarm threshold and overload alarm to protect your devices from potential damage • Data Memory Feature: Stores measurement data even when powered off, ensuring you never lose important information during power interruptions • Convenient Backlight Control: Easily toggle the backlight on or off with a simple button pr for enhanced visibility in low-light conditions • Integrated Current Shunt: Built-in design simplifies installation and saves time, making it ideal for quick setups and efficient use Features: 1、Large screen LCD displays voltage, current, active power, energy at the same time 2、The DC voltmeter is designed with power alarm threshold, overload alarm function 3、It has memory function can store measure data when power off 4、Short pr the key to turn on or off the backlight 5、Built in current shunt design, convenient for using and saving your time Specification: 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 pr the key to turn on or off the backlight. Built in current shunt design, convenient for using and saving your time. Specification: Brand: PEACEFAIR Model: PZEM-031 Working voltage: 6.5-100V DC Voltage test range: 6.5-100V DC Rated power: 20A / 2000W Measurement Accuracy: 1.0 Weight: Approx. 78g 0.00-20.00A Note: This module is 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 Package List