FNIRSI FNB58 USB Voltage Current Tester with Bluetooth, Fast Charge Detection, 4-28V Voltage, 7A High Current, 4 Function Curves, 5 Ports, Multiple Protocol Triggers, 2.0 IPS HD Display

Monitor Voltage: 
Range: 4-28V
Resolution: 0.00001V
Accuracy: ± (0.2‰ + 2)

Monitor Current:
Range: 0-7A
Resolution: 0.00001A
Accuracy: ± (0.5‰ + 2)

Monitor Power:
Range: 0-120W
Resolution: 0.00001W
Accuracy: ± (0.5‰ + 2)

Load Equivalent Internal Resistance:
Range: 0-9999.9Ω
Resolution: 0.0001Ω
Accuracy: ± (0.5‰ + 2)

D+/D- Voltage:
Range: 0-3.3V
Resolution: 0.001V
Accuracy: ± (1.0% + 2)

Equipment Temperature:
Range: Celsius/Fahrenheit
Resolution: 1 Celsius / 1 Fahrenheit
Accuracy: ± (1.2%+3) / ± (1.2%+4)

Capacity:
Range: 0-9999.99Ah
Resolution: 0.00001Ah

Energy Used:
Range: 0-9999.99Wh
Resolution: 0.00001Wh

Cable Resistance:
Range: 0-9999.9Ω
Resolution: 0.0001Ω

Equipment Running Time:
Range: 99d 23h 59min 59s
Resolution: 1s

Record Time:
Range: 99d 23h 59min 59s
Resolution: 1s