Features Premium Design: Battery monitor shortcut keys are made of silicone material, which not only simplifies operation steps, but also feels comfortable. Acrylic panel design can effectively protecting the screen, easy to clean, dustproof and better light. The Useful Battery Monitor: The car battery tester can measure voltage, current, power, charge and discharge capacity, watt hour, time and other parameters. You can also set it for overvoltage protection, undervoltage protection, overcurrent protection, over Real Time Monitoring: Automatically recognize and monitor current in charge or discharge, in real time, which will largely improve the overall safety. Various Control Modes: Voltage tester supports display control, can provide protocol, using 485, the secondary development can be carried out on the development tools such as serial assistant. Can switch addresses. Can switch addresses, respectively cont Built in Buzzer: When a certain value of battery monitor exceeds the preset protection limit value, it will start the protection, and the alarm sound will sound and alarm, it will disconnect the circuit through the relay to protecting the instrument from Specification: 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.  Package List: 1 x Display Module 1 x Measurement Module 1 x Sampler 1 x Temperature Sensor 1 x 5m Communication Cable 1 x 3P Flat Cable 1 x 4P Flat Cable 1 x 3P Terminal Note: Please read the manual carefully before use. Package List 1 x Display Module 1 x Measurement Module 1 x Sampler 1 x Temperature Sensor 1 x 5m Communication Cable 1 x 3P Flat Cable 1 x 4P Flat Cable 1 x 3P Terminal