Dual USB Current Voltage Charger Detector battery Tester 3V to 9V Voltmeter Ammeter

Features Of Dual LED Display USB Current Voltage Meter Battery Tester: The tester uses a new generation of power four semis ~ double loop integral converter IC, with a precision bandgap reference, range accuracy, high precision, stable and reliable performance, strong anti~interference ability, high temperature can be used for measuring USB powered or power consumption of the interface, mobile phone charger, U disk, and other products. USB powered devices can be used to measure air, voltage loads, USB terminal equipment working voltage and current.