PZEM-017 DC communication module, the module is mainly used to measure DC voltage, current, active power, frequency, and energy consumption. The module has no display function; data is read via the RS485 interface. PZEM-017: Measurement range 50A, 100A, 200A, 300A (current range depends on the external shunt specification). Click this link to download the software and user manual. Link: http://.mediafire.com/file/vtvevyvattxi5sy/PZEM003%25EF%25BC%258C017-Master-English.zip/file Working Voltage: 0.05 ~300VDC, when the test voltage is less than 7V, use the supply mode, Resolution: 0.01V. Test Voltage: 0.05 ~300VDC. Rated Current: 0.02A-300A/0.2-90kW. Measurement Accuracy: 1.0 grade 1 Current 1.1 Measurement Range: 0.01-10A(PZEM-003); 0.02-300A(PZEM-017; can be matched with 50, 100, 200, 300A four types of shunt). 1.2 Resolution: 0.01A 1.3 Measurement Accuracy: 1% 2 2.1 Measurement Range: 0.2-90kW(PZEM-017) 2.2 Resolution: 0.1W 2.3 Measurement Accuracy: 1% 3 Energy Consumption 3.1 Measurement Range: 0-9999kWh 3.2 Resolution: 1Wh 3.3 Measurement Accuracy: 1% Reset Energy: use software to reset. Communication Interface: RS485 interface. Communication Protocol: Physical layer protocol Physical layer uses UART to RS485 communication interface. Baud rate is 9600, 8 data bits, 2 stop bits, no parity. Other Instructions: 1 RS485 interface is passive output, needs external connection 5V power supply and the external power supply should be greater than 100mA. 2 When the input test voltage is less than 7V, it must supply 5V working voltage via the -USB port; 3 Note: Do not use the USB port provided by your PC as the power supply, otherwise it may damage your PC. Color: Black Material: Plastic + Metal Size: 90 x 60.5 x 23mm Package Contents: 1X PZEM-017 module 1X 50A shunt 1X USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3cm.