R449A Gas Detector GDR453I6

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

R449A Gas Detector GDR453S6

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

R454B Gas Detector GDR300I12

R454B refrigerant Gas Detector 0-2000 PPM 4-20mA - Infrared sensor, for non classified area GDR300I12 - Tecnocontrol

R454B Gas Detector GDR300S12

R454B refrigerant Gas Detector 0-1000 PPM 4-20mA - Semiconductor sensor, for non classified area GDR300S12 - Tecnocontrol