The DuctWatch IR gas detector is easy to install and commission, and does not require expensive extractive sampling system hardware. Providing a full scale measurement range of 0 to 15% LFL (0 to 7500 ppm) methane vapor concentration, the PIRDUCT delivers a new level of flammable hydrocarbon gas protection for high airflow environments. The PIRDUCT assembly is designed for mounting on any flat surface, and is provided pre-assembled with an aluminum mounting plate, seal gasket, and electrical termination junction box. A minimum internal duct width of 3 feet (1 meter) is required for proper installation.

•  In-situ design improves gas response time and simplifies installation.
• Continuous self-test automatically indicates a fault or fouled optics condition.
•  Field calibration not required, but supported.
• Standard 4-20 mA signal output is proportional to 0 to 15% LFL (0-7500 ppm) methane. 
•  Global approvals (FM, CSA, ATEX, CE, IECEx).

Additionally, the PIRDUCT is six times more sensitive to combustible gas than a conventional IR point detector and improves detection in applications where air stratification can occur.