OPTO 22 PB16 Relay Circuit Board With Relays I/O, 16 Channel 32 Pin, Status LED

Opto 22 PB16 G1 Family 16-Channel I/O Module Rack

Opto 22 G4PB16 16-channel I/O Module Rack

Opto 22 G4PB16 G4 16-Channel I/O Module Rack

Opto 22 G4PB16T G4 16-Channel I/O Module Rack with Terminal Strip

Opto 22 PB16T G1 16-Channel I/O Module Rack with 2 Barrier Strips

Opto 22 PB16H G1 16-Channel I/O Mounting Rack Board with Header Connector

Opto 22 G4PB16HC 16-Channel I/O Mounting Rack w/ Header Connector Common TB