R134A Gas Detector - Dust Proof Enclosure Version S3595R134A
R134A Gas Detector, Norflurane Gas Detector, HFC-134A Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure Version Zone 2 category 3 areas S3595R134A