Usage Tips:Intelligent carbon dioxide value tester uses air semiconductor-sensor to monitor temperature and humidity of air quality.<br> Adopts superior electrochemical detection module, with high accuracy, stable performance, can accurately detect carbon dioxide value.<br> Strong anti-interference ability, low consumption and long service life.<br> The product does not need calibration, it can be tested after booting, and it can accurately detect carbon dioxide.<br> Hundreds of ventilation holes at the back of housing not only accelerate the convection between the air and the machine, thereby realizing effective detection, but also provide a fine heat dissipation effect.<br> Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, , etc.<br> Specifications:<br> Name: Air Quality Detector<br> Colour:B White<br> Material:plastic<br> Package Contents:<br> 1 * Carbon Dioxide Detector<br> 1 * USB Cable<br> 1 * English manual<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.