Cubic NDIR, Ultrasonic & Particle Gas Sensors

Cubic Sensor and Instrument Co., Ltd. is a gas sensor and gas analysis company headquartered in the Eastlake Hi-tech Development Zone, Wuhan, China, listed on the Shanghai Stock Exchange (688665.SH) and active for more than 20 years. It supplies sensing modules to OEMs in HVAC and refrigeration, automotive, medical, smart metering, oil and gas and semiconductor manufacturing, backed by more than 100 engineers and a gas sensor reliability test centre of over 1,000 m².

Its core technologies are NDIR and NDUV infrared absorption, ultrasonic measurement, light scattering and TDLAS laser spectroscopy. Products include NDIR CO2 sensors such as the battery-friendly CM1106SL-N and industrial SRH series, A2L/A3L refrigerant leak sensors, TDLAS methane sensors, ultrasonic gas and water meter modules, particulate and VOC sensors, optical particle counters for cleanrooms, medical ETCO2 and oxygen sensors, and automotive air quality and battery thermal-runaway sensors.

• NDIR CO2 sensors: low-power CM1106SL-N for battery devices and SRH series up to 20% for industry.
• Refrigerant leak sensors: AM4205 and AM4203 for A2L/A3L refrigerants with UL and IEC certification.
• TDLAS methane sensing: Gasboard-2501 CH4 sensor for flammable gas and coal mine safety.
• Ultrasonic flow modules: residential, commercial and industrial gas meter and water meter modules.
• Particle and IAQ sensing: PM, VOC and RH/T modules plus optical particle counters for cleanrooms.
• Automotive and medical sensors: cabin air quality, battery thermal runaway, ETCO2 and oxygen sensors.

Air-conditioner and heat-pump makers in Vietnam can integrate certified A2L refrigerant leak sensors. Electronics and semiconductor plants can monitor cleanroom particles with optical particle counters. Gas utilities and building operators can deploy ultrasonic gas meters and CO2 sensors for smart metering and ventilation control.

One supplier covers CO2, refrigerant, methane, particulate, oxygen and flow sensing, simplifying sourcing for appliance, HVAC and meter makers. AM4205 and AM4203 refrigerant sensors carry UL 60335-2-40 and IEC certification, helping air-conditioner makers meet A2L safety rules. IATF 16949 certification qualifies the company as an automotive Tier 1 supplier. A large in-house reliability test centre supports long-term sensor stability.

The switch to lower-GWP but mildly flammable A2L refrigerants is making leak detection mandatory in many air conditioners and heat pumps. Electric vehicles need battery thermal-runaway sensors, and methane emission rules are tightening in oil and gas. Vietnam is a growing production base for air conditioners, appliances and EV components and is upgrading cleanrooms for electronics and semiconductors, which increases demand for certified gas and particle sensors.

Headquartered at Fenghuang No.3 Road, Eastlake Hi-tech Development Zone, Wuhan, China; listed on the Shanghai Stock Exchange (688665.SH); chairman Dr. Youhui Xiong. Has a European subsidiary, Cubic Sensor and Instrument Hungary Kft., and is building a factory in Hungary. Certified to IATF 16949, ISO 14001 and ISO 45001. Released its 2024 ESG report in May 2025.