Features MEASURING PARAMETERS: This battery monitor can measure voltage, current, power, charging and discharging capacity, watt hours, time, etc., with overvoltage, undervoltage, overcurrent, overvoltage, and over temperature protection. MULTIPLE FUNCTIONS: Can set parameters, support BT to view measurement data, control instruments and firmware upgrades through mobile APP, automatically recognize and monitor current and current direction. DURABLE MATERIAL: Silicone shortcut keys have a comfortable feel, simplify the operation steps, the acrylic panel effectively protects the screen with good light transmittance, the brass shunt and screws have good conductivity and low heat generation. PROTECTION ALARM: When the value exceeds the set limit value, the meter protection function will be activated, alarm sounds and provides reminder, the relay (not included) will disconnect the circuit to protect the meter from damage. MULTIPLE CONTROL: Support display control, provide comm protocol, adopt 485 comm, support secondary development, and can switch comm addresses to control 99 units respectively; Mobile APP control, BT connection and viewing of data and curves. Specification: Voltage Measuring Range (External Power Supply): 10-120V Voltage Measuring Range (Self Power Supply): 10-120V Voltage Resolution: 0.01V Current Measuring Range: 0-100A Current Resolution: 0.01A Relay: No provided, requires self configuration Temperature Measuring Range: -20-120℃ Capacity Display Range: 0%-100% Power Measuring Range: 0-72KW Power Resolution: 0.01W Anshi Measuring Range: 0-9999.99Ah Capacity Resolution: 0.001Ah Watt Hour Measuring Range: 0-9999.99kWh Watt Hour Resolution: 0.001Wh Time Measuring Range: 0-999: 59: 59S Time Resolution: 1 second Accessible BT Comm Distance: Up to 10 meter / 32.8ft Voltage Accuracy: ±1% + 2 words Current Accuracy: ±1% + 5 words 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, 99 in total Package List: 1 x Display Module 1 x Measuring Module 1 x Sampler 1 x Temperature Sensor 1 x 5 Meter Comm Line 1 x 3P Flat Cable 1 x 4P Flat Cable 1 x 3P Wiring Terminal Package List 1 x Display Module 1 x Measuring Module 1 x Sampler 1 x Temperature Sensor 1 x 5 Meter Comm Line 1 x 3P Flat Cable 1 x 4P Flat Cable 1 x 3P Wiring Terminal