CO2 Monitor, CO2 Sensor 3 in 1 Indoor Air Quality Monitor for CO2 Temperature Humidity with LCD Display and Alarm [...]

In 1 CO2 MONITOR: Air quality detector can detect CO2, temperature and humidity. With CE marking and compliant with standards and approved by European Health and Safety Directives. It is suitable for living room, bedroom, office, library and other different places. ALARM FUNCTION AND LCD SCREEN - The co2 sensor with the large LCD screen and 24-hour real-time monitoring function, you can see the data more clearly at any time. You can adjust the alarm threshold according to your needs. Press the left button for 3 seconds to turn on the alarm, press the right button for 3 seconds to turn off the alarm. 6-LEVEL BRIGHTNESS ADJUSTMENT - Click the left button to increase the brightness of the LEDs; right click to decrease LED brightness. The dense opening design on the back of the CO2 detector is convenient for air circulation and heat dissipation, reducing false alarms caused by excessive temperature and insufficient contact with outside air . HIGH PRECISION SENSOR - Multifunctional air quality monitor device with high precision laser particle sensor and carbon dioxide sensor based on NDIR (infrared) technology. CO2 range: 400~5000 PPM, Detection temperature: -10C to 50C, Relative humidity: 20% - 85%RH. WIDE APPLICATION - The co2 monitor for monitoring air quality in schools, office buildings, greenhouses, factories, hotels, hospitals and anywhere high levels of carbon dioxide are emitted.