admin Dec, Sat, 2017 Allyl Chloride gas sensor – Flameproof ATEX LEL transmitter, Zone 1 Allyl Chloride gas sensor - Flameproof ATEX LEL transmitter, Zone 1 Allyl Chloride gas sensor – Flameproof ATEX LEL transmitter, Zone 1, 2, SIL 2 Comments 0