NI 9421 - 24 V, 8-Channel (Sinking Input), 100 µs C Series Digital Module
Quality Assurance
All units thoroughly tested before shipping. 30-day return period.
The NI 9421 is a high-performance 24 V digital input module featuring 8 sinking input channels with a fast 100 µs response time. Designed for C Series compatibility, it ensures reliable and precise signal acquisition in industrial automation systems. Its sinking input configuration supports a wide range of sensors and devices, making it ideal for complex control applications requiring rapid and accurate digital input processing.
Part Number: 779002-01
Shipping Information
Standard: Ships in 3-5 days
Expedited: Ships next day (select countries).
DHL is our preferred shipper. You may also request UPS or Fedex.
Returns and Warranty
We have a 30-day no-risk return policy. If you are not completely satisfied with your purchase, you can return the item(s) within 30 days of receipt for a full refund.