R449A Gas Detector 0-1000 PPM 4-20mA Relay, Display & Buzzer - Semiconductor sensor, for non classified area GDR450S6 - Tecnocontrol

R449A Gas Detector 0-2000 PPM 4-20mA Relay, Display & Buzzer - Infrared sensor, for non classified area GDR453I6 - Tecnocontrol

R449A Gas Detector 0-1000 PPM 4-20mA Relay, Display & Buzzer - Semiconductor sensor, for non classified area GDR453S6 - Tecnocontrol

R449A Gas Detector 0-2000 ppm 4-20mA - Infrared sensor - SMART3-R for non classified area S4620R449A Sensitron

R452B Gas Detector 0-20% LFL - Infrared sensor - SMART3-H LITE for non classified area S3851R452B Sensitron

R452B Gas Detector 0-20% LFL 90-240 Vac - Infrared sensor - SMART3-H-FM LITE for non classified area S4663R452B Sensitron

R452B Gas Detector 0-20% LFL 12-24 Vdc - Infrared sensor - SMART3-H-FM LITE for non classified area S4683R452B Sensitron

R454A Gas Detector 0-20% LFL - Infrared sensor - SMART3-H LITE for non classified area S3848R454A Sensitron

R454A Gas Detector 0-20% LFL 90-240 Vac - Infrared sensor - SMART3-H-FM LITE for non classified area S4660R454A Sensitron

R454A Gas Detector 0-20% LFL 12-24 Vdc - Infrared sensor - SMART3-H-FM LITE for non classified area S4680R454A Sensitron

R454B Gas Detector, Opteon™ XL41 Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-C3 Sensitron Dust Proof Enclosure Version Zone 2 category 3 areas S4432R454B

R454B Gas Detector, Opteon™ XL41 Gas Detector 0-100% LFL 4-20mA - Infrared sensor - SMART3G-D3 Sensitron Dust Proof Enclosure Version with display Zone 2 category 3 areas S4434R454B