OPTO 22 PB4AH G14-Channel Analog Mounting Rack - USED

MetraByte Corp DAS-16, STA-16 Terminal Accessory Board with OPTO 22 PB4 Relay

OPTO 22 PB4H Relay Mounting Board - USED

Opto 22 PB16T 16-Channel Power Module Rack - USED

Opto 22 G4DA4 I/O Module Analog 0-5VDC Output 20mA 12-Bit Single Channel - USED

Opto 22 PB4 I/O Module Rack

Opto 22 G4PB32DEC Module Rack; 50-Pin; Fuse; Rack Mount USED, W/7 Sets I/O Relay

226767 Used; OPTO 22 PB32HQ Quad Pak 8-module Rack