Opto 22 PB4 G1 4-Channel I/O Module Rack with 2 Barrier Strips

Opto 22 PB4 G1 4-channel I/O Module Rack with 2 Barrier Strips, w/ QTY 4 IDC5B

PB-4 - Opto 22 - 22 PB4 000200C Mounting Board With 2 Relays

PB-4 - Opto 22 - 22 000200C PB4 Mounting Board With 2 Relays

OPTO 22 PB4 / PB4 (USED)

Opto 22 PB4 I/O Mounting Rack 4-Channel w/ (3) ODC5 Modules

OPTO 22 PB4 BOARD W/ FOUR IAC24 RELAYS PB-4

Opto 22 Model: PB4 Module Rack with (3) IDC5 Modules