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The IR Thermopile can be used to measure methanol (CH4O / half structure formula: CH3OH) & ethanol (C2H5OH) at ambient temperatures between -20 and 85 °C. With its very high detectivity of up to 6.27*10^8 cm√Hz/W and a sensitivity of up to 171 V/W, the 2-channel detector is the high end solution for demanding applications in medical technology or industrial production and process applications. The optical filter window with a CWL of 9663 ± 80 nm and a HBW of 240 ± 40 nm is specifically designed for NDIR gas analysis of these typical alcohol compounds. These signal values, which are comparable to pyrodetectors, are achieved by the interaction of chip design, integrated thermistor for reference temperature determination, an interference absorber and backgassing with krypton. The precise measurement results are further secured by the second reference channel (CWL: 5060 ± 25, HBW: 100 ± 15 nm).

The pyro-detector measures methanol (CH4O/half structure formula: CH3OH) & ethanol (C2H5OH) at ambient temperatures between -20 and 85 °C. With its high detectivity of up to 4.0*10^8 cm√Hz/W and a sensitivity of up to 200000 V/W, the 2-channel detector represents the high end solution for demanding applications in medical or industrial production and process applications. The optical filter with a CWL of 9663 ± 80 nm and a HBW of 240 ± 40 nm combined with the reference channel are specially designed to analyze typical alcohol compounds. The exceptional signal values result from the combination of a broad spectral sensitivity of 2 - 15 µm (optimized from 3 - 5 µm), a high sensitivity with a modulation frequency of up to 100 Hz, a low microphone effect due to the low membrane mass, very low temperature dependence and an amplified signal in current mode. The reliable measurement results are furthermore secured by a high read-out rate up to 100 Hz as well as by the short response time.