Carbon Dioxide Gas Detector, CO2 Gas Detector 0-30% Vol 4-20mA - Infrared sensor SMART3G-D2 Sensitron Explosion Proof Enclosure Version with display Zone 1 Category 2 areas S2449CO2

Carbon Dioxide Gas Detector, CO2 Gas Detector 0-5% Vol 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure Version Zone 2 category 3 areas S2650CO2

Carbon Dioxide Gas Detector, CO2 Gas Detector 0-2% Vol 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure Version Zone 2 category 3 areas S2649CO2

Carbon Dioxide Gas Detector, CO2 Gas Detector 0-100% Vol 4-20mA - Infrared sensor - SMART3G-D3 Sensitron Dust Proof Enclosure Version with display Zone 2 category 3 areas S2633CO2