R417A Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2 Sensitron Explosion Proof Enclosure version Zone 1...
R-417A refrigerant Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-D3 Sensitron Dust Proof Enclosure...
R-417A refrigerant Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure...
R410A Gas Detector 0-5000 ppm 4-20mA - Infrared sensor - SMART3-R for non classified area S4642R410A Sensitron