LifeBasis Portable CO2 Tester 3 in1 Temperature Humidity CO2 Detector 0~5000 PPM Range

LifeBasis portable CO2 detector with high precision laser particle sensor and NDIR (infrared) technology can accurately monitor CO2 concentration 0~5000 PPM, temperature: -10°C to 40°C (14°F to 104°F) and humidity: 20% - 80% (± 5%) RH at the same time, can be used at schools, offices, greenhouse, hotel, hospital ect.  Why Choose LifeBasis 3 in 1 CO2 Monitor? 1. 3-IN-1 AIR QUALITY MONITOR This air quality sensor can detect CO2, temperature and humidity. Know what is in the air you breathe to improve your air quality, to protect your family. 2. HIGH PRECISION SENSOR Multifunctional air quality monitoring device with high precision laser particle sensor and NDIR (infrared) technology based carbon dioxide sensor. CO2 range: 0~5000 PPM, Detection temperature: -10°C to 40°C (14°F to 104°F), Relative humidity: 20% - 80% (± 5%) RH. 3. LCD DISPLAY AND BACKLIGHT DESIGN Large LCD display and backlight function, which makes it easier to read in low light. As well as the which changes from i expr