This module is mainly used for measuring DC voltage, current, active power, frequency and energy consumption, the module is without display function, the data is read through the RS485 interface._x000D_ _x000D_ Features:_x000D_ _x000D_ It is mainly used for measuring DC voltage, current, active power, frequency and energy consumption. _x000D_ The current measure range is 50A, 100A, 200A, 300A depend on the external shunt specification. _x000D_ There are 10 different kits to choose, enough to meet your various need. _x000D_ Physical layer use UART to RS485 communication interface, baud rate is 9600, 8 data bits, 2 stop bit, no parity. _x000D_ The application layer use the ModbusRTU protocol to communicate, it only supports function codes such as 0x03, 0x04,0x06, 0x41, 0x42, etc. _x000D_ Voltage threshold can be set, divide into high voltage and low voltage threshold, when the measured voltage exceeds the threshold, it can alarm. _x000D_ _x000D_ Specification:_x000D_ Brand: PEACEFAIR_x000D_ Model: PZEM-017_x000D_ Voltage:_x000D_ _x000D_ Measuring Range: 0.05-300V (When the test voltage is 7V, please use the independent power supply mode) _x000D_ Resolution: 0.01V _x000D_ Measurement Accuracy: 1% _x000D_ Current:_x000D_ _x000D_ Measuring Range: 0.02-300A (Can be matched with 50A, 100A, 200A, 300A four kinds of shunt) _x000D_ Resolution: 0.01A _x000D_ Measurement Accuracy: 1% _x000D_ Power:_x000D_ _x000D_ Measuring Range: 0.2-90kW _x000D_ Resolution: 0.1W _x000D_ Measurement Accuracy: 1% _x000D_ Energy Consumption:_x000D_ _x000D_ Measuring Range: 0-9999kWh _x000D_ Resolution: 1Wh _x000D_ Measurement Accuracy: 1% _x000D_ Reset Energy: Use Software to Reset_x000D_ Over Voltage Alarm:_x000D_ _x000D_ Default High Voltage Threshold: 300V _x000D_ Default Low Voltage Threshold: 7V _x000D_ Communication Interface: RS485 Interface_x000D_ Working Temperature: -20~60_x000D_ Product Size: Approx. 9*6*2.3cm/3.5*2.4*0.9inch_x000D_ Weight: Approx. 77g~287g / 2.7oz~10.1oz_x000D_ Register address Description Resolution _x000D_ 0x0000 Voltage value 1LSB correspond to 0.01V _x000D_ 0x0001 Current value 1LSB correspond to 0.01A _x000D_ 0x0002 Power value low 16 bits 1LSB correspond to 0.1W _x000D_ 0x0003 Power value high 16 bits _x000D_ 0x0004 Energy value low 16 bits 1LSB correspond to 1Wh _x000D_ 0x0005 Energy value high 16 bits _x000D_ 0x0006 High voltage alarm status 0xFFFF is alarm,0x0000 is not alarm _x000D_ 0x0007 Low voltage alarm status 0xFFFF is alarm,0x0000 is not alarm _x000D_ _x000D_ _x000D_ _x000D_ Register address Description Resolution _x000D_ 0x0000 High voltage alarm threshold(5~350V),_x000D_ default is 300V 1LSB correspond to 0.01V _x000D_ 0x0001 Low voltage alarm threshold1~350V,_x000D_ default is 7V 1LSB correspond to 0.01V _x000D_ 0x0002 Modbus-RTU address The range is _x000D_ 0x0001~0x00F7 _x000D_ 0x0003 The current range 0x0000: 100A_x000D_ 0x0001: 50A_x000D_ 0x0002: 200A_x000D_ 0x0003: 300A _x000D_ _x000D_ _x000D_ _x000D_ Optional Kit _x000D_ #1 1 x DC Consumption Meter _x000D_ #2 1 x DC Consumption Meter_x000D_ 1 x RS485 to USB Cable _x000D_ #3 1 x DC Consumption Meter_x000D_ 1 x 50A Shunt _x000D_ #4 1 x DC Consumption Meter_x000D_ 1 x 100A Shunt _x000D_ #5 1 x DC Consumption Meter_x000D_ 1 x 200A Shunt _x000D_ #6 1 x DC Consumption Meter_x000D_ 1 x 300A Shunt _x000D_ #7 1 x DC Consumption Meter_x000D_ 1 x RS485 to USB Cable_x000D_ 1 x 50A Shunt _x000D_ #8 1 x DC Consumption Meter_x000D_ 1 x RS485 to USB Cable_x000D_ 1 x 100A Shunt _x000D_ #9 1 x DC Consumption Meter_x000D_ 1 x RS485 to USB Cable_x000D_ 1 x 200A Shunt _x000D_ #10 1 x DC Consumption Meter_x000D_ 1 x RS485 to USB Cable_x000D_ 1 x 300A Shunt _x000D_ _x000D_ Note:_x000D_ _x000D_ RS485 interface is passive output, need external connect 5V power supply and the external power supply should 100mA. _x000D_ When the input test voltage is less than 7V, it must supply 5V independent work voltage through USB port. _x000D_ Do NOT use the USB port bring by your PC to be the independent power supply, otherwise it may damage your PC.