https://www.ornicom.com/products/explosion-proof-gas-detectors-with-display/pentane-gas-detector-explosion-proof-enclosure-version-s2157pe.html
SMART3G-D2 Explosion-Proof Detectors with Display: Pentane Gas Detector - Explosion Proof Enclosure...
Pentane Gas Detector 0-100% LFL 4-20mA - Catalytic sensor - SMART3G-D2 Sensitron Explosion Proof Enclosure Version with display Zone 1 category 2 areas S2157PE
explosion proof detectors