Les détecteurs de fumée servent à contrôler et à détecter les alarmes incendie.

[High Precision Sensor]:Our co2 tester meter use non-dispersive infrared technology (NDIR) and can track CO2 concentration, environmental humidity, and temperature in real-time.

[Ventilation Reminder]Our co2 monitor eco have 3-Color LED indicator and emotion icon to remind you of the CO2 level around. That not only help maintain the people's job performance but also prevent us from respiratory health problems.

[Portable CO2 Sensor]This air quality monitor tester is light in weight, The battery can be used for 6 hours after being fully charged. You can take it with you everywhere you go.

[Easy to Use]:The two keys on the back of the carbon dioxide monitor implement all operations, including temperature switching, turning on /off the backlight and manual calibration.