Feature 1MULTIPLE FUNCTIONS: This coulomb meter can measure voltage, current, power, charge and discharge capacity, watt hours, time, etc. It automatically identifies the direction of current and monitors battery capacity in real time. 2CIRCUIT PROTECTION: This battery monitor can set parameters to achieve overvoltage protection, undervoltage protection, overcurrent protection, overvoltage protection, over temperature protection, etc., safe and reliable. 3DURABLE MATERIAL: Silicone shortcut keys have a comfortable feel and simplify the operation steps, the acrylic panel effectively protects the screen with better light transmittance, the brass shunt and screws ensure good conductivity. 4BUILT IN BUZZER: When the value exceeds the pre set protection limit value, the instrument protection function will be activated, the alarm will sound and remind, and the circuit will be disconnected through a relay (not included). 5MULTIPLE CONTROL: Support monitor control, use 485 comm and other tools for secondary development, support mobile APP control, with BT connection, can view all relevant data and curves on the APP , and set all functions. 6CLEAR DISPLAY: The battery monitor adopts a 2.4 inch color screen, displaying the current function menu, parameter settings, and measurement data, which is user friendly, and has a wide range of applications.Item Type: Battery MonitorModel: KH140FMaterial: ABS, BrassScreen: 2.4 Inch Color LED ScreenSampling Method: ShuntVoltage Measurement Range (External Power Supply): 0-120VVoltage Measurement Range (Self Power Supply): 10-120VVoltage Resolution: 0.01VCurrent Measurement Range: 0-400ACurrent Resolution: 0.01ARelay: No relay provided, requires self configurationTemperature Measurement Range: -20-120Power Measurement Range: 0-72KWPower Resolution: 0.01WAmpere Hour Measurement Range: 0-9999.99AhCapacity Resolution: 0.001AhWatt Hour Measurement Range: 0-9999.99kWhWatt Hour Resolution: 0.001WhTime Measurement Range: 0-999: 59: 59secondTime Resolution: 1 secondAccessible BT Comm Distance: Up to 10 metersVoltage Accuracy: 1%+2 wordsCurrent Accuracy: 1%+5 wordsSampling Rate: 1 time Per secondMeasurement Board Power Consumption: About 0.4WDisplay Meter Power Consumption: About 0.5WOverpower Protection: 0-99999.99WDischarge Overcurrent Protection: 100ACharging Overcurrent Protection: 100AUndervoltage Protection: 0-120VExternal Over Temperature Protection: -20-120Protection Recovery Time: 0-99sEnter Standby Time: 0-60sDelay Time Setting: 0-99sComm Address: P01-P99, 99 in total .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Display Module1 x Measuring Module1 x Sampler1 x Temperature Sensor1 x 5 Meter Comm Line1 x 3P Flat Cable1 x 4P Flat Cable1 x 3P Wiring TerminalNotePlease read the manual carefully before use.