Fishonly Digital Multimeter USB Power Meter Tester Current Voltage Monitor Detector Charging for Phone, Charger, Power Bank, PC, Tablets

Description

Fishonly Digital Multimeter USB Power Meter Tester Current Voltage Monitor Detector Protect your devices When your car charger, home charger or usb interface on PC is abnormal, your charging phone or other devices may be destroyed too . This USB multimeter with led display and three warning modes will provide protection for your expensive devices. Test the quality of your device When you buy a new phone, charger or cable, just connect it with this tester to see the voltage and current, it's a good way to check the quality of your goods with the data. Three warning modes Fast sound for over voltage & current. Slow sound for low power & voltage. Siren sound for power leakage. Specification: Voltage: 3.7V--7.4V Current: 0--5.1A Max power calculated: 999.99Wh Max capacity calculated: 999.99mAh First time to short press the key: show the capacity Second time to short press the key: show the power Long press the key: exact current ( show in three numbers) Long press the key in power mode: Cleared to 0 Long press the key in capacity mode: Cleared to 0 Warning when voltage is less than 4.5V or over than 5.8V, current is over 5A. Package Includes: 1x Digital power meter tester