Smart Battery Monitor 600A RV Car Battery Tester 2.4in LED Display for Maintenance Item Type: Smart Battery Monitor Model: KH160F Material: ABS, brass. Screen: 2.4in color LED screen. Sampling Method: Diverter Voltage Measurement Range Under External Power Supply: 0-120V Voltage Measurement Range when Self Powered: 10-120V Voltage Resolution: 0.01V Current Measurement Range: 0-600A Current Resolution: 0.01A Relay: No relay provided, requires self configuration. Temperature Measurement Range: -20-120℃ Capacity Display Range: 0%~100.0% Power Measurement Range: 0-72KW Power Resolution: 0.01W Ah Measurement Range: 0~9999.99Ah Capacity Resolution: 0.001Ah Watt Hour Measurement Range: 0~9999.99kWh Watt hour Resolution: 0.001Wh Time Measurement Range: 0~999:59:59S Time Resolution: 1 Second Bluetooth Communication Distance: The maximum accessible communication distance is 10m / 32.81ft (approx.) Voltage Accuracy: ±1% + 2 digit. Current Accuracy: ±1% + 5 digit. Sampling Rate: 1 time per second. Measurement Board Power Consumption: About 0.4W. Display Meter Power Consumption: About 0.5W. Overpower Protection: 0-99999.99W Discharge Overcurrent Protection: 100A Charging Overcurrent Protection: 100A Undervoltage Protection: 0-120V External Over Temperature Protection: -20-120℃ Protection Recovery Time: 0-99s Enter Standby Time: 0-60s Delay Time Setting: 0-99s Mailing Address: P01-P99 Of 99 in all.