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Description: The sensing element of gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration. The TGS 813 has high sensitivity to methane, propane, and butane, making it ideal for natural gas and LPG monitoring. The sensor can detect a wide range of gases, making it an excellent, low cost sensor for a wide variety of applications. Also available with a ceramic base which is highly resistant to severe environments up to 200°C (model# TGS 816). Features: Part Number: TGS813 (TGS 813) High sensitivity to methane, propane,and butane General sensitivity with sensitivity to a wide range of combustible gases Long life and low cost Uses simple electrical circuit Application: Portable gas detectors Domestic gas leak detectors and alarms Package Included: 1 X Puuli TGS813 Gas Detector Gas Sensor TGS 813 Combustible Gases Detection Methane Butane