CH-A3 Alphasense 2.5% Pellistor Gas Sensor

The CH-A3 Alphasense Pellistor Gas Sensor (formerly known as AP-0012) detects low levels of flammable hydrocarbon gases including methane, ethane, propane, butane, acetylene, ethylene and isobutylene in ambient air. This 20mm diameter sensor is the industry standard size for portable gas detectors. All pellistors are housed in certified flameproof chambers. For Sensor Tube Caps, please look under the "Accessories" Tab Features 0 to 100% LEL methane High quality, low power Excellent poison resistance Specifications Measuring Gas: methane Sensing Method: Pellistor Sensivity (mV / % methane): 15 to 22 Response time (t90 from air to 50% methane): < 15 sec. Zero (mV in zero air) < ± 20mV Range (% LEL methane): 0 to 100 Linearity (% methane when 5% non-linear): 6% Warranty 90 Days. See CO2Meter Terms and Conditions. Data Sheet (pdf) Tube cap adapters easily convert 20mm standard gas sensors from diffusion to sampling sensors. Molded polymer grips sensor for easy fit and r