OLED 128x64 USB Tester DC voltmeter current voltage Meters Power Bank battery Capacity monitor qc3.0 Phone charger detector

Description:
This test can be a USB charging current, voltage, discharge capacity,Quantity of electric charge,power, timing, intelligent devices.
It can be very easy to find digital device charging problem.
Tester three dimensional size 65 * 24 * 14mm
The only button on the tester is used to view and test data switch, The tester can be powered down to save dat

Specification:
1. Model: J7-4T/J7-T
2. Material: Plastic
3. Color: Black
4. Voltage: 3.0000-30.000V
5. Current: 0-5.1000A
6. Operating temperature: -10 - 60°C
7. Size: 65 x 24 x 14mm