Fsm-t-04a combustible gas sensor module description The fsm-t-04a combustible gas sensor module is a new unit which utilizes tgs6812, catalytic pellistor type gas sensor which features durability and stability. This module provides analog output voltage proportional to hydrogen gas concentration.(there is a memory in module, where factory calibration data has been store). Fsm-t-04a has conformal coatings for moisture proofing and electrical insulation purposes, and is also capable of detecting sensor wire breakage. The unit has a wide range of operating temperature from -10 to +70'c. Furthermore, the unit can detect ch4, lpg, h2. It is less sensitivity to vocs gas, it immunes poison by silicon compounds, it suits to work at rugged environment. Fsm-t-04a combustible gas sensor module features: * linear analog output proportional to gas concentration * maintenance free * compact size * meets rohs requirements Fsm-t-04a combustible gas sensor module applications: * gas leak detection in fuel cell systems * hydrogen & combustible gas leak detectors Fsm-t-04a combustible gas sensor module specification * gas sensor: tgs6812 (catalyâ??tic type) * detection range: 0 ~ 50, 000ppm ch4 * error: 3%lel * response time (t90): 30s * operating temperature: -10'c ~ +70'c * operating humidity: 20~95%rh (no condensing) * input voltage: 5.00.2v dc, 3.00.1v dc * power consumption: 1.5w