Usage Tips:Features: 1. in size, lightweight and portable, easy to take out and carry around with you2. Adopts quality intelligent chip for fast response and more accurate measurement of CO2 in air, with high working performance and high accuracy. Uses high accuracy sensor, high precise temperature and humidity detection, with fine interference resistance ability, stable working performance, with low power consumption3. display, you can see the electricity , CO2 value, TVOC value, HCHO value, temperature, and humidity clearly. Multifunctional design, with real-time detection, automatic refresh data, and self-calibration functions4. Equipped with air quality level division function, 4 different words correspond to different air quality levels, allowing you to more accurately and more graphic know the current air conditions. The multi-channel air convection design enables efficient detection due to the high convection between the air and the machine, while also providing a fine heat dissipation effect5. Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, , business offices, and etcSpecifications: Name: Air Quality DetectorBattery: 1 x (not included)Display: digital displayInterface: Type-C 5V, 1ACO2 measuring ranges: 400-5000ppmTemperature measurement ranges: 0 to 50/ 32-122Humidity measurement ranges: 0-RHSensor type: infraredsize: 162 x 62 x 53mmMaterial: ABScolour: whitePackage Contents: 1 x air quality monitor1 x usb cableOnly the above package content, other products are not included.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.