R404A Gas Detector GDR450I9

R404A Gas Detector 0-2000 PPM 4-20mA Relay, Display & Buzzer - Infrared sensor, for non classified area GDR450I9 - Tecnocontrol

R404A Gas Detector GDR450S9

R404A Gas Detector 0-1000 PPM 4-20mA Relay, Display & Buzzer - Semiconductor sensor, for non classified area GDR450S9 - Tecnocontrol

R404A Gas Detector GDR453I9

R404A Gas Detector 0-2000 PPM 4-20mA Relay, Display & Buzzer - Infrared sensor, for non classified area GDR453I9 - Tecnocontrol

R404A Gas Detector GDR453S9

R404A Gas Detector 0-1000 PPM 4-20mA Relay, Display & Buzzer - Semiconductor sensor, for non classified area GDR453S9 - Tecnocontrol