2.8 Inch Tft Color High-Definitondisplayenvironmental Status Is Clear At A Glance 18 Sets Of Data Display - The Ao Value And The Specific Value Of Each Parameter Are Updated In Real-Time:Color Grading-N Ot Only Shows The Specific Values But Al So Allows You To Quickly Understand T He Environmental Situation Through Different Colors. 2.8-inch TFT display screen, can be connected to mobile phone Bluetooth to synchronize real-time display Date and time. 18 in 1 air detector:Real time monitoring, conducting a'physical examination' of the air around you Caring for family health, technology lights up life.C02 (carbon dioxide), co (carbon monoxide), HCH0 (formalde-),C6H6 (stupid),Tvoc (total volatile organic compounds), dust Particulate matter PM0.3,PMO.5,PM1.0,PM2.5,PM5.0,PM10.Temperature and humidity detection, AQl (Air Quality Index -Integrated with particulate matter), date and time, data curve display, comparison of particulate matter values,Data storage (can beimported into a computer),integrated with 18 functions. An adult breathes over 20000 times a day and inhales approximately 15-20 cubic meters of air The cleanliness and freshness of the air being breathed require high at-tention.Human respiration can Causing the continuous increase ofindoor CO2 concentration, therefore C02 concentration is a measure of indoor An important indicator of air freshness, when the concentration of CO2 is too high,it can cause discomfort Tired. also means poor ventilation. It is easy to deposit pollutants, such as PM particles, in poorly ventilated environments Harmful substances such as formaldehyde (HCHO),TVOC (volatile organ-ic compounds),etc. Please check as much as possible to make sure the item is what you need. Colour:White Material:plastic Package Contents: 1 x 18-in-1 Air Quality Monitor Only 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.