CO2 Sensor Thermometer Hygrometer Portable Real Time Air Quality Tester with Built-in Alarm and Lithium Battery Charger Included 400-5000 PPM

High precision CO2 sensor: the Selensy sensor detects the CO2 content, humidity and ambient air temperature in real time thanks to the NDIR infrared sensor.

Air quality monitor Air PPM: A multifunctional air quality monitor that measures carbon dioxide concentration, air quality (400-5000 ppm), temperature and humidity.

Portable : Light and elegant. It is easy to carry and you can put it anywhere you want, such as a patio, bar, office, car, school, etc.

Intuitive and visual design of data and levels: the CO2, humidity and temperature levels are indicated by a color scheme, red for poor air quality, yellow for normal levels and green for good quality.

Built-in alarm: automatically activates at the 1000 ppm level. Press the sensor's power button to turn off the alarm sound. You can see if the alarm is activated on the indicator light at the top left of the screen.

Rechargeable battery: The sensor has a built-in rechargeable battery.