R-1234yf refrigerant Gas Detector, HFO-1234yf Gas Detector 0-2000 ppm 4-20mA - Infrared sensor SMART3G-D2 Sensitron ...
R-1234yf refrigerant Gas Detector, HFO-1234yf Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2-LD...
R-1234yf refrigerant Gas Detector, HFO-1234yf Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-C2 Sensitron...
R-1234yf refrigerant Gas Detector, HFO-1234yf Gas Detector 0-100% LFL 4-20mA - Infrared sensor SMART3G-D2 Sensitron ...