Features Function: The DC power consumption meter is mainly used to measure DC voltage, current, active power, frequency and energy consumption. Current Measurement: The current measurement range of the power consumption meter module is 50A, 100A, 200A, 300A, depending on the external shunt specification. Physical Layer: The physical layer of the DC power consumption meter uses the UART to RS485 communication interface, the baud rate is 9600, 8 data bits, 2 stop bits, and no parity. Application Layer: The application layer of the power consumption meter uses the ModbusRTU protocol for communication, and only supports function codes such as 0x03, 0x04, 0x06, 0x41, and 0x42. Threshold: The voltage threshold can be set, divided into high voltage threshold and low voltage threshold, when the measured voltage exceeds the threshold, an alarm will be issued. Specification: Voltage: Measuring Range: 0.05-300V (When the test voltage is ＜7V, please use the independent power supply mode) Resolution: 0.01V Current: Measuring Range: 0.02-300A (Can be matched with 50A, 100A, 200A, 300A four kinds of shunt) Resolution: 0.01A Power: Measuring Range: 0.2-90kW Resolution: 0.1W Measurement Accuracy: 1% Energy Consumption: Measuring Range: 0-9999kWh Resolution: 1Wh Measurement Accuracy: 1% Over Voltage Alarm: Default High Voltage Threshold: 300V Default Low Voltage Threshold: 7V Communication Interface: RS485 Interface Working Temperature: -20~60℃ Product Size: Approx. 9*6*2.3cm/3.5*2.4*0.9inch Optional Kit #1 1 x DC Consumption Meter #2 1 x DC Consumption Meter+1 x RS485 to USB Cable #3 1 x DC Consumption Meter+1 x 50A Shunt #4 1 x DC Consumption Meter+1 x 100A Shunt #5 1 x DC Consumption Meter+1 x 200A Shunt #6 1 x DC Consumption Meter+1 x 300A Shunt #7 1 x DC Consumption Meter+1 x RS485 to USB Cable+1 x 50A Shunt #8 1 x DC Consumption Meter+1 x RS485 to USB Cable+1 x 100A Shunt #9 1 x DC Consumption Meter+1 x RS485 to USB Cable+1 x 200A Shunt #10 1 x DC Consumption Meter+1 x RS485 to USB Cable+1 x 300A Shunt Note: RS485 interface is passive output, need external connect 5V power supply and the external power supply should ＞100mA. When the input test voltage is less than 7V, it must supply 5V independent work voltage through USB port. Do NOT use the USB port bring by your PC to be the independent power supply, otherwise it may damage your PC. Package List