AlphaSense CH-A3 Pellistor Sensor

The AlphaSense CH-A3 Pellistor Sensor 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. Note: Once an electrochemical (EC) sensor is purchased from Gaslab.com and the sealed packaging is opened or the sensor module is installed, it is no longer eligible for return due to the limited operational lifespan that begins upon activation. 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% Warran