Battery Meter 2.4in Display 2 Way Wifi Remote Battery Tester for Electric Car Scooter RV 10-100V 600A Item Type: Wifi Battery Meter Material: ABS, Brass, Silicone Screen Size: 2.4 inches Sampling Method: Shunt Voltage Testing Range: 10-100V Current Testing Range: 0-600A Current Resolution: 0.01A Capacity Display Range: 0-100 percent Power Testing Range: 0-60KW Power Resolution: 0.0001W Ah Testing Range: 0-9999.9Ah Capacity Resolution: 0.001Ah BT Connection Distance: Approx. 10 meters / 32.81 feet Wifi Connection Distance: Approx. 10 meters / 32.81 feet Remote Connection Range: Global Voltage Accuracy: ±5%+0.02V Current Accuracy: ±2+0.01A Sampling Rate: 5 times/second Display Power Consumption: 0.9W Screen Off Time: 10S, 20S, 30S, 40S, 50S, 60S, AUTO (When discharge, bright screen when I≥30mA, off screen when I＜30mA and time＞20s)