Technical parameters: Measure USB charging voltage, current, and discharge capacity over time Check the performance of USB cables, wall chargers, car chargers, and power banks Fast-charger compatible, works up to 20V and does not interfere with quick charge negotiation
Voltage range: 4-20V Max Current: 3A Resolution: 0.01V, 0.01A, 1mAh Time: 0-99 hours Capacity: 0-99999mAh
★Paket yg didapat★
1 pcs ★keweisi usb charger tester power voltage ampere detector charging lcd ★