National Instruments Ni 9421 module Quantity Available

National Instruments NI 9421 cDAQ 8-Ch 24V Sinking Digital Input Module

NI 9421 Digital Input Module, 8 Channels, 24V Sinking

National Instruments NI cDAQ-9401 8 channel TTL I/O Module

National Instruments NI USB-6525 – Isolated Digital I/O Device / USB Interface

National Instruments NI 9401 8-Ch 5V TTL Digital I/O Module Compact DAQ

National Instruments NI 9421 cDAQ Digital Input Module

National Instruments NI 9421 cDAQ 8-Ch 24V Sinking Digital Input Module