USB Tester Multimeter USB C Current and Voltage Meter 3.3-30V 0-5.1A Tester 2 in 1 Voltmeter Ammeter Capacity Power Supply Wattmeter Charger Detector

General description The USB Tester Multimeter is a versatile 2-in-1 device designed to measure current and voltage within the range of 3.3-30V and 0-5.1A. It features a high-definition color LCD screen that allows users to easily monitor various parameters, including voltage, current, capacity, and power. This tester is equipped with multiple safety features to protect devices from potential damage. Technical specifications Measuring Range: Voltage 3.3-30V, Current 0-5.1A Input Voltage: 12V Output Voltage: 12V Voltage Measurement Error: 0.05 Ambient Temperature: 37℃ Usage Check battery capacity and charging speed Evaluate the quality of charging cables Display maximum current of wireless chargers Test capacity and performance of mobile power supplies Support automatic data backup after power outages Other information Features overvoltage, overcurrent, undervoltage, and low power protection Alarm system for sudden output data shutdown Supports OTG function Display mode can be switched by pressing a button