Features • Large Screen Display: View voltage, current, active power, and energy simultaneously on a clear LCD screen for easy and accurate monitoring • Power Alarm Function: Stay informed with built-in power alarm thresholds and overload alarms, ensuring safe and preventing damage • Memory Function: Preserve your measurements with a memory feature that saves data even during power outages, providing reliable acc to your information • Convenient Backlight Control: Easily toggle the backlight on or off with a simple pr of a key, enhancing visibility in low-light conditions • Integrated Current Shunt: Enjoy hassle- usage with a built-in current shunt design that simplifies installation and saves you valuable time 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