Tuya APP Remotes Viewing: After connect with your mobpilephone APP correctly, you can view the data on your mobilephone easily, wherever you are.Built-in capacity rechargable lithium battery to supplys power, and you can recharge it in time. Display: color screen allows you to browse the data more clearly, makes it more convenient for elderly and children, giving you a better experience.Wide Applications: This detector is suitable for indoor air quality detecting, and can be widely used in your home, living room, bedroom, office and other places.Intelligent Linkage:You can achieve intelligent linkage through Tuya APP. After setting, you can acchieve the intelligent linkage such as when the temperature up to 34 , automatically open the door.Sensors: VOC sensorsTemperature data: 0~60Humidity measuring ranges: 0-99%RHTVOC measuring ranges: 0-3mg/mCO2 measuring ranges: 400-5000PPMScreen: 2.8inch TFT color screenBattery: 1 * lithium battery, 1200mAh (included)Colour:BlackMaterial:ABS+PVCSize:90 x 70 x 40mmPackage Contents:1 x Air Quality Monitor1 x Charging 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.