Your cart is currently empty.


Free US shipping on orders $199 or more.


GfG ZD121 Oxygen Fixed Transmitter 2210009

Usually ships in 5 - 7 days
Add to Wishlist


Product Experts
Have a question? Ask our Factory Trained Product Experts. We are here for you.
75+ Years of Experience
There is a reason we've been in business so long. We understand safety and customer service.
Fast & Free Shipping*
We ship most orders same day. Order $199 or more and get free shipping to 48 states.

GfG ZD121 Oxygen Fixed Transmitter is a robust transmitter when there are harsh environmental conditions such as varying temperatures, high or low pressure or dry or humid air. The sensor operates with a zirconium dioxide oxygen pump cell. The ZD 21 is an intelligent fixed transmitter for the detection of oxygen. The comprehensive electronics allow for easy operation and maintenance and also increase operational safety and accuracy. In less than two seconds the ZD 21 responds to an oxygen deficiency. This extremely quick response time allows the time to take measures to prevent considerable damage.

Key Features:

  • Extremely stable oxygen (O2) sensor lasts five years (typical)
  • Sensor is unaffected by exposure to high concentrations of carbon dioxide (CO2)
  • Fast recovery from barometric pressure, humidity or temperature
  • Minimal signal loss over time reduces the need for frequent calibration
  • Measuring principle: Zirconium dioxide (ZD)
  • short response time (t90 < 2 s)
  • Expected sensor lifetime: 5 years
  • Signal transmission: 0.2-1 mA or 4-20 mA
  • Protection class: IP54
  • Monitors: O2

Part Numbers:

Related Products