Smart Battery Monitor with Shunt RV Voltmeter Tester High Low Voltage Programmable Alarm 400A 0V‑120V Item Type: Smart Battery Monitor Model: KH140F Material: Acrylic, brass, silicone Screen: 2.4in color LED screen Sampling Mode: Shunt Voltage Measurement Range (external power supply): 0-120V Voltage Measurement Range (self powered): 10-120V Voltage Resolution: 0.01V Current Measurement Range: 0~400A Current Resolution: 0.01A Relay: No relay provided, needs to be configured by yourself Temperature Measurement Range: -20-120℃ Capacity Display Range: 0% to 100 percent Power Measurement Range: 0~72KW Power Resolution: 0.01W Ampere Measuring 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 Distance: Barrier Free Distance: Up to approx. 10meter / 32.8ft Voltage Accuracy: ±1%+2 words Current Accuracy: ±1%+5 words Sampling Rate: 1 time per second Measuring Board Power Consumption: About 0.4W Display Head Power Consumption: About 0.5W Over Power Protection: 0-99999.99W Discharge Overcurrent Protection: 100A Charge Overcurrent Protection: 100A Undervoltage Protection: 0 to 120V External Overtemperature Protection: -20-120℃ Protection And Recovery Time: 0-99s Standby Time: 0-60s Delay Time Setting: 0-99s Mailing Address: P01-P99 99 in total