Feature: 1. Accurate Readings: Air quality monitor uses a high quality semiconductor TVOC sensor to accurate and reliable results. The electrochemical detection module ensures that the air quality detector gives accurate readings every time.2. High Performance: The carbon dioxide detector has a stable, performance with excellent immunity to interference and the ability to differentiate between different gases. The low power consumption and long service life of the unit an excellent investment.3. Display: The gas detector features a , clear display to that the user can read the results comfortably and quickly. The device can display multiple data types simultaneously, making it easy to use.4. Versatile: The portable air quality monitor is versatile and can detect a wide range of gases, including CO2, TVOC and HCHO. This feature makes the device useful in a of environments, including homes, offices and schools.5. Easy to Use: The air quality monitor has a user-friendly interface that can be operated by anyone. The device has a simple operating mode and comes that guides the user on how to use it properly.Specification: : Paint & DecoratingGas Type: MultifunctionalWith LCD Screen Or Not: YesModel Number: Air Quality MonitorBuilt-in lithium battery: 2000mAhCharging: about 3 hoursAvailable time: 240-360 minutesDetection technology: semiconductorWorking temperature: 0-50Display mode: TFT full color screenWorking voltage: 5VSensor: Laser sensorMaterial: ABScolour: blackPackage Contents: 1 x DetectorOnly 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.