Texas Instruments: infrared gas sensor
The TI-8GS infrared gas sensor continuously monitors for refrigerant leaks. The company says it is designed for chiller rooms and other hvacr applications where accurate and automatic refrigerant gas monitoring is a must. This stand-alone unit offers a variety of outputs to include 0-10 V or 4-20 mA control outputs, as well as alarm and spill relay outputs. It is packaged in a rugged, splash-resistant steel enclosure.
— Texas Instruments