Upgraded Mini CO2 Detector, Calibratable 3 in 1 Portable CO2 Monitor Meter, Air Quality Monitor Portable Carbon Dioxide Detector with Temperature Humidity Meter for Indoor Thermometer (Black)…

【Portable CO2 Detector】: The 3 in 1 CO2 monitor use NDIR technology which can sense CO2, humidity and temperature. It is designed as portable, so you can carry it at anywhere to detect indoor and outdoor air quality. It helps you to work and live in a fresh and healthy surrounding. It equipped with 1200 mAh rechargeable battery, it can work 8-10 hours and 20 hours standby time with 2.5 hours charging time.
【CO2 Sensor】: The indoor air quality detector equipped our advanced NDIR technology sensor with high accuracy and quickly response. It can detect the CO2 range 400-5000PPM, humidity range 0-99%, and temperature range 14℉-120℉(-10-50℃).
【Calibration of Mini CO2】: The carbon dioxide monitor can tell you the real-time Co2 data, it has been pre-calibrated before leaving factory. It also has function to re-calibration, the attached instruction has been demonstrated, so you can simply calibrate according to your need.