DISCONTINUED: EMX no longer sells the IRB-325-TX transmitter board by itself.
Direct replacement: IRB-325 Transmitter and Receiver Set [EMX-1112-1] — the same IRB-325 transmitter, now only sold by EMX together with its matching receiver. It mounts, wires and aligns exactly like the transmitter it replaces, so no operator changes are needed.
Replacement Options We Stock
| Model | Includes | Best For |
|---|---|---|
| IRB-325 Transmitter and Receiver Set [EMX-1112-1] | Transmitter + receiver | Replacing a failed transmitter (or receiver) on an existing IRB-325 installation |
| IRB-325 Kit with Grey Hoods [EMX-1112-K] | Transmitter + receiver + steel hoods | New installations — EMX specifies the steel hoods for UL325 compliance |
About the Original IRB-325-TX (For Reference)
IRB-325-TX transmitter only — the infrared transmitter board half of the EMX IRB-325 thru-beam photoeye for automatic gate operators.
![Infrared Photocell IRB-325 Kit with grey hoods [EMX-1112-K]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/18942/235724/emx-infrared-photocell-irb-325-kit-with-grey-hoods-emx-1112-k-irb-325-kit__90731.1794327126.jpg?c=2 "Infrared Photocell IRB-325 Kit with grey hoods [EMX-1112-K]")
![Infrared Photocell IRB-325 Kit with grey hoods [EMX-1112-K]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/10360/231959/emx-infrared-photocell-irb-325-kit-with-grey-hoods-emx-1112-k-irb-325-kit__37993.1789589187.jpg?c=2 "Infrared Photocell IRB-325 Kit with grey hoods [EMX-1112-K]")
![IRB-HD Single cover only for Photocell IRB-4X [EMX-1903-1]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/9865/232810/emx-irb-hd-single-cover-only-for-photocell-irb-4x-emx-1903-1-no-longer-available-irb-hd__33862.1789589175.jpg?c=2 "IRB-HD Single cover only for Photocell IRB-4X [EMX-1903-1]")