Butadiene Gas Detector, C4H6 Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-D2 Sensitron Explosion Proof Enclosure Version with display Zone 1 category 2 areas S2602BN

Butadiene Gas Detector, C4H6 Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-C2 Sensitron Explosion Proof Enclosure version Zone 1 category 2 areas S2654BN

Butadiene Gas Detector, C4H6 Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-C2-LD Sensitron Explosion Proof Enclosure with LED version Zone 1 category 2 areas S2654BN-LD

Butane Gas Detector 0-100% LFL 4-20mA - Catalytic sensorl - SMART3G-C3 Sensitron Dust Proof Enclosure Version Zone 2 category 3 areas S2096BU