R-410A refrigerant Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure...
R407F Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3-R for non classified area S4619R407F Sensitron
R407C Gas Detector 0-5000 ppm - Infrared sensor - SMART3-H LITE for non classified area S3856R407C Sensitron
R407F Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2-LD Sensitron Explosion Proof Enclosure with LED...