Feu de circulation du CO2

Maintenance-free, immediately operational multifunction sensor with traffic light display, incl. plug-in power supply. Self-calibrating, in an attractive plastic housing, for determining the CO2 content, humidity and temperature of the room air.Visual display of the CO-2 measured variable via a 3-color traffic light system.- Backlit LCD display - Measurement and display of CO2, humidity, temperature- Recording of the lowest and highest CO2 values of the last 24 hours- Power supply via plug-in power supply unit (included in delivery)- Buzzer when CO2 value exceeded (CO2 threshold adjustable)- Mute button for buzzer- Automatic calibration- Adjustable threshold values for the LEDs