New USB tester, voltmeter, Ammeter current meter Introduction
New USB charger tester, voltmeter, current meter.
- no require other ancillary equipment e.g power, cables etc.
- detect USB charger output voltage and current.
- small size, portable to carry; 7x2.5x1 cm
Technical features:
Scope : 0-3A±1%
Voltage: 4-30v± 1%
Time: 0-99hrs.
Capacity: 0-99999mAh
