R507 Gas Detector 0-1000 PPM 4-20mA - Semiconductor sensor, for non classified area GDR300S5 - Tecnocontrol

R507 Gas Detector 0-2000 PPM 4-20mA - Infrared sensor, for non classified area GDR300I5 - Tecnocontrol

R507 Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2-LD Sensitron Explosion Proof Enclosure with LED version Zone 1 category 2 areas S3660R507-LD

R507 Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2 Sensitron Explosion Proof Enclosure version Zone 1 category 2 areas S3660R507

R454C Gas Detector 0-20% LFL 12-24 Vdc - Infrared sensor - SMART3-H-FM LITE for non classified area S4682R454C Sensitron

R454C Gas Detector 0-20% LFL 90-240 Vac - Infrared sensor - SMART3-H-FM LITE for non classified area S4662R454C Sensitron