Gas detector, Gas sensor,as measuring, For measuring explosive and toxic gases and vapours. MF 420 Gas sensor , Gas detector, Design of the ... gas measuring systemThe sensor sits in an approx. 46 mm ... Ex dIIC T6In accordance with Dirctive94/9/EC (ATEX100a)Sensor Sensor typePellistor Gas accessBy diffusion Measuring range0-100% LEL Warm ...