He air quality detector adopts sensors with high precision and stable working performance. Large color digital display, you can clearly see the carbon dioxide concentration, temperature and humidity data. Wide range of applications: agricultural planting, greenhouse vegetables, production warehouses, material processing, home interior decoration, etc. The air convection design is adopted to provide more accurate detection results, and the detection range is from 400ppm to 5000ppm. Large color digital display, you can clearly see the carbon dioxide concentration, temperature and humidity data. Strong anti-interference ability, low power consumption, long service life. The product does not need to be calibrated, it can be tested when it is turned on, and can accurately detect carbon dioxide., Manufacturer: XZXXZSZ