Amphenol Advanced Sensors offers a full suite of climate and energy-efficiency sensors and transmitters. AAS provides a wide range of highly-reliable sensing products for the most stringent commercial and consumer-grade requirements. These include NTC and PTC thermistors, CO₂ modules and transmitters, combination humidity/temperature sensors, IR thermopiles, and pressure sensors, and it can also develop design specific sensor assemblies and packaging. Additionally, AAS offers specialty sensors developed for harsh environments, which include commercial refrigeration applications.