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R507A Gas Detector - Dust Proof Enclosure Version S3655R507A

R-507A refrigerant Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3G-D3 Sensitron Dust Proof Enclosure Version with display Zone 2 category 3 areas S3655R507A
SMART3G-D3 - Détecteur de Gaz avec Afficheur Zone 2 Cat 3 gas detector with display