Features • Large Screen LCD Display: Simultaneously monitors voltage, current, active power, and energy, providing clear visibility for efficient energy management • Power Alarm Functions: Equipped with a power alarm threshold and overload alarm, ensuring safety and preventing potential damage to your devices • Data Memory Capabilities: Retains measurement data even during power outages, allowing you to track energy usage effectively without losing important information • Easy Backlight Control: Short press to toggle the backlight on or off, ensuring readability in low-light conditions for effortless monitoring at any time • Built-In Current Shunt: Simplifies installation and usage, saving you time and effort while delivering accurate measurements for all your energy needs 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 press 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 press 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