Vender YGO 4-Digits USB Detector Charger Current Voltage Charging USB Voltmeter Amp Tester al mejor precio

#4-Digits #USB #Detector #Charger #Current #Voltage #Charging #USB #Voltmeter #Amp #Tester 4-Digits USB Detector Charger Current Voltage Charging USB Voltmeter Amp Tester High Precision USB Current Voltage Charging Detector 4 Digits Mobile Power Bank Voltmeter Ammeter Voltage USB Charger Tester Double Row Shows Product Parameter: Input / output voltage: 3.3V-30V Voltage resolution: 0.001V Input / output current: 0A-5A (0-3A recommended) Current resolution: 0.001A Accuracy: +/-1% Line loss: 1 ohm Communication function: Yes Data calibration function: Yes Note: There are three holes on the back of the product : The left hole is the trimming current . The middle hole is the trimming voltage . Right hole: short the two points with the tweezers to make the current return to zero when the power is on. Package included: 1PCS 4-digits High precision USB Tester