OPTO 22 IAC5 Input Module Relay Lot of 5

USED Lot of 5 WRC 1781-IB5S Slim I/O Input Relay Modules

7-24V Modbus Rtu 1/2/4/8 Channel Relay Module Switch input output RS485/TTL UART

JOHNSON YOKOGAWA OAC5 Lot of 2 Input Module Relay

8 Channel AC/DC 24V Rail Mount Relay Interface Module Input Boards

DC 7-24V 1-Channel Relay Module RTU Switch Input And Output RS485/TTL

Modbus RTU 4-way relay module 12V 4-way switch input optocoupler isolation RS485

3.3V 1 Channel Relay Driver Module Photoelectric Isolation Input PNP / NPN