Description: Air quality detector, real-time quality around Eight functions: carbon dioxide detection, , HCHO , temperature and humidity , intelligent alarm system, multiple anti-interference, air convection technology, greenhouse compensation calibration Suitable for new cars, new houses, elderly rooms, maternal and infant rooms, children's rooms, schools, , hotels, etc. Using scientific mesh design, multi-angle heat dissipation, dissipation, accurate data Easily distinguish air quality and make CO2// clear at a glance High-performance chip, accurately captures the weak current generated in the electrochemical reaction process, accurately budgets the HCHO measurement results, increases the service life, improves the output effect, and effectively improves the conversion Environmental protection and energy saving, low battery reminder, built-in lithium battery 1200mAh, 10 hours standby time, support USB charging, 5V charging voltage Alarm , dual reminder Specification: Working voltage: DC5V Battery capacity: 1200mAh Working temperature: 10-50°C Size: 6.7x3.2x9.8cm Package Includes: 1 Piece Air Quality Detector Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.