16 Channels PLC NPN Signal Output Power Amplifier Board Relay Module

16 Ways PLC PNP or NPN Signal Output Power Amplifier Module Relay Board

16 Channels PLC NPN Signal Output Power Amplifier Board Relay Module

8 Channel 12VDC Relay Board PLC DIN Rail Mounting - NPN/PNP

8-channel PLC signal level voltage conversion board NPN output DST-1R8P-N

8-channel PLC Signal Level Voltage Conversion Board PNP Output DST-1R8P-P

4 Channel 24VDC Relay Board PLC DIN Rail Mounting - PNP - common cathode

PNP/NPN Signal Voltage Conversion 8-channel Optocoupler Isolation Board