Chlorine Gas Detector, CL2 Gas Detector 0-5 ppm 4-20mA - Intrinsically Safe Electrochemical Cell - SMART3G-C2 Sensitron Explosion Proof Enclosure version Zone 1 category 2 areas S3012CL

Chlorine Gas Detector, CL2 Gas Detector 0-20 ppm 4-20mA - Intrinsically Safe Electrochemical Cell - SMART3G-D2 Sensitron Explosion Proof Enclosure Version with LCD display Zone 1 category 2 areas S3015CL

Portable Chlorine Dioxide Gas Detector, ClO2 Gas Detector 0-1 ppm Gasman ClO2 - Crowcon

Portable Carbon Monoxide Gas Detector, CO Gas Detector, Carbonyl Gas Detector 0-500 ppm (H2 filtered) Gasman CO - Crowcon