16CH RS485 Analog Input Module 4-20MA 0-20MA 0-5V 0-10V Current Voltage Collect

8-24CH 4-20MA To RS485 Current Analog Input Collector Module MODBUS RTU Board

16CH DC 12V 24V Temperature Analog PT100 Resistance RS485 Collector Modbus RTU

8-32 DI-DO PNP to PNP RS485 Modbus Rtu Remote IO Module DC 12-24V 300MA Output

8 Ch Analog Output 0-10V 0-5V AO Module RS485 Modbus RTU To Voltage PLC Remote

4PCS DC 12V 4-20mA 0-5V 0-10V Voltage Signal Acquisition RS485 Modbus RTU Module

16ch Full-duplex Transparent Transmission of Digital IO RS485 Modbus RTU Module

VHF/UHF Radio RF UART RS485 Wireless Transceiver Board Modbus RTU Master-Slave