Heptane Gas Detector, Dipropylmethane Gas Detector 0-100% LFL 4-20mA - Catalytic sensor - SMART3G-C2-LD Sensitron Explosion Proof Enclosure with LED version Zone 1 category 2 areas S2155EP-LD

Heptane Gas Detector, Dipropylmethane Gas Detector 0-100% LFL 4-20mA - Catalytic sensor - SMART3G-D2 Sensitron Explosion Proof Enclosure Version with display Zone 1 category 2 areas S2157EP

Heptane Gas Detector, Dipropylmethane Gas Detector 0-100% LFL 4-20mA - Infrared sensor SMART3G-D2 Sensitron Explosion Proof Enclosure Version with display Zone 1 Category 2 areas S2602EP

Heptane Gas Detector, Dipropylmethane Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-C2 Sensitron Explosion Proof Enclosure version Zone 1 category 2 areas S2654EP