R410A Gas Detector GDR400I4

R410A Gas Detector 0-2000 PPM 4-20mA Relay & Buzzer - Infrared sensor, for non classified area GDR400I4 - Tecnocontrol

R410A Gas Detector GDR400S4

R410A Gas Detector 0-1000 PPM 4-20mA Relay & Buzzer - Semiconductor sensor, for non classified area GDR400S4 - Tecnocontrol

R410A Gas Detector GDR403I4

R410A Gas Detector 0-2000 PPM 4-20mA Relay & Buzzer - Infrared sensor, for non classified area GDR403I4 - Tecnocontrol

R410A Gas Detector GDR403S4

R410A Gas Detector 0-1000 PPM 4-20mA Relay & Buzzer - Semiconductor sensor, for non classified area GDR403S4 - Tecnocontrol