Natural Gas Detectors

Natural gas detectors should reliably detect the presence of gas concentrations far below the lower explosion limit of about 5% vol. In Germany many different cheap gas alarm systems can be purchased in DIY-market, but most of these devices are not based on any quality standard. Although high priced alarm and monitoring systems are available there is a lack of low cost reliable gas alarm systems for use in households which are based on appropriate standards. 

Many appliances for gas sensors in households are still under development. For example, several attempts have been made in the past to include gas sensors in kitchen ovens to control cooking and frying processes as well as to control the self-cleaning process (pyrolysis). 

Company Name Sensor type Cas type Measurement range Power consumption 

Electrim Tech ESM 779 Semi- conductor Methane (combustible gases) 10-25% UEG 12 V/24V/ 230 V 2-3 W 

Figaro TGS 842 Semi- conductor (Sn02) Methane (combustible gases) 500-10000 ppm 0.9 W 

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