CO Gas Detector utilizes a multilayer sensor structure. A glass layer for thermal insulation is printed between a ruthenium oxide heater and an alumina substrate. A pair of Au electrodes for the heater are formed on a thermal insulator. The gas sensing layer, which is formed of tin dioxide, is printed on an electrical insulation layer which covers the heater. A pair of Au electrodes for measuring sensor resistance are formed on the electrical insulator. Activated charcoal is filled between the internal cover and the outer cover for the purpose of reducing the influence of noise gases. CO Gas Detector displays good selectivity to carbon monoxide, making it ideal for CO monitors. A simple pulsed electrical circuit operating on a one second circuit voltage cycle can convert the change in conductivity to an output signal which corresponds to gas concentration. You can rely on our immense expertise in manufacturing, exporting and supplying different kinds of CO gas detector which is widely appreciated and acclaimed due to its ultra modern features.