CMOS (ceramic metal oxide semiconductor) remains a valuable technology for refrigerant leak detection, despite its age. It operates by detecting changes in conductivity of sensitized metal oxides when exposed to refrigerant gases.
While CMOS systems are effective for meeting safety standards across all refrigerants, IR technology is preferable for toxic applications, refrigerant conservation initiatives, or environments prone to cross-contamination by other chemicals
- Low detection limit (30-60 ppm) refrigerant leak monitoring
- Cost-effective
- Reliable ASHRAE compliance
Thermal Gas Systems – CMOS Gas Monitors
Thermal Gas Systems’ CMOS gas monitors bring next-generation sensing technology to industrial safety, offering fast, reliable, and highly selective gas detection in demanding environments. Built around advanced Complementary Metal-Oxide Semiconductor (CMOS) sensor architecture, these monitors deliver superior sensitivity and long-term stability with minimal power consumption, making them ideal for continuous monitoring applications.
Unlike traditional catalytic or electrochemical sensors, CMOS technology uses micro-scale semiconductor structures that respond instantly to target gases, delivering accurate readings without the drift, poisoning, or frequent calibration demands of older sensor types. This results in lower maintenance, longer service life, and greater reliability in environments where uptime matters.
Thermal Gas Systems integrates this technology into rugged, purpose-built monitors designed for commercial and industrial settings, including mechanical rooms, refrigeration applications, labs, manufacturing areas, and other facilities requiring dependable detection of refrigerants or toxic gases. With flexible outputs, easy installation, and compatibility with building automation and alarm systems, TGS CMOS monitors provide a smart, future-ready solution for gas safety and compliance.
Contact us for sales and service throughout New England and Upstate New York.