National Instruments NI 9421 NI-9421 PLC CONTROLLER MODULE

National Instruments NI 9977 cRIO slot filler - custom module

National Instruments NI 9375 NI-9375 D-SUB PLC MODULE

National Instruments NI 9201 194922A-01L PLC MODULE

NATIONAL INSTRUMENTS DIGITAL OUTPUT, 19936A-01L - NI9472 (USED)

National Instruments NI-9211 4 input, Thermocouple input module

National Instruments NI 9221 NI-9221 PLC CONTROLLER MODULE