Windmill CH₄ Gas Detection TOSA & PD Pair is a laser optical component set specifically designed for methane gas detection. It consists of a TOSA (Transmitter Optical Sub-Assembly) laser transmitter and a PD (Photodiode) receiver, operating on the TDLAS (Tunable Diode Laser Absorption Spectroscopy) principle to deliver high-precision, selective methane concentration measurement.
- High Selectivity — Responds exclusively to methane's characteristic absorption wavelength, immune to interference from water vapor, dust, and other gases, effectively minimizing false alarms.
- Rapid Response — Sub-second response time, significantly outperforming conventional electrochemical sensors and providing critical reaction time for emergency response.
- Long Lifespan, Low Maintenance — Optical detection requires no consumables and eliminates the need for frequent recalibration, substantially reducing O&M costs.
- Compact Design — Space-efficient form factor compatible with both portable inspection devices and fixed-point online monitoring terminals.
The TOSA & PD pair can be integrated into wall-mounted or built-in combustible gas alarms for deployment in kitchens, boiler rooms, and other gas-utilization areas, enabling real-time methane leak early warning.
Home gas alarm scenario
The same component solution is applicable across restaurants, factories, hotels, office buildings, schools, shopping malls, residential complexes, hospitals, and a wide range of commercial and public venues for comprehensive gas safety monitoring.
Application scenario coverage
The component can be integrated into handheld laser remote detection instruments supporting 0–150m long-range inspection, ideal for gas station, natural gas station, and pipeline valve chamber patrols — enabling non-contact, rapid leak detection in the field.
Handheld laser methane remote detector for field inspection
