Boyuan 3-in-1 CO2 Detector & Air Quality Monitor - Measures Carbon Dioxide (400-5000ppm), Temperature & Humidity with LCD Display - Ideal for Home, Office, School & Indoor Air Safety

Multifunctional Carbon Dioxide Tester This 3 in 1 CO2 monitor can detect real-time CO2 concentration, monitor indoor and outdoor humidity, and temperature. CO2 detection range 400-5000PPM. Temperature detection range 0-50℃. Humidity detection range 0-99%RH.

Full-Color Large Screen With full-color display and large screen design, this carbon dioxide detector is super easy to read. LCD digital display with intelligent adjustable backlight, eye protection function, one key operation.

USB Rechargeable Battery Air monitor built-in 2000mAh Li-ion battery can be used continuously for 3-4 hours after full charging, which can meet your testing needs in different environment for a long time. And come with a USB chargeing cable for keeping working all the time.

More Functions Intelligent early warning system, high quality infrared NDIR sensor, automatic calibration, multiple interference prevention, air convection technology, greenhouse compensation calibration.

Multi Application Two use way, wall-mounted or tabletop design, suitable for agricultural planting, production warehouse, raw material processing, home, school, office, and other occasions. Easy to Use Put the air quality detector CO2 in a ventilated place, and turn on , automatic calibration is completed after 1-2 minutes, CO2 tester can be used normally.