Carbon Dioxide CO2 Detector Formaldehyde Detector Air Quality Tester

Features:
Temperature difference compensation calibration technology, judge the ambient temperature data, automatic calibration test results.
You can measure CO2 levels, care about your family's health.
Locate the source of the contamination and test it more accurately.
It can be connected to mobiles powers to check the sealing space.
Long-term record, tracking formaldehyde /TVOC concentration trend.
It can be used in greenhouse plantation, farm indoor air detection, household air detection and so on.