Description Feature: 1.For everyone ,Its necessary to know the air quality of the place where you live.Upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Dioxide(CO2). 2.Newest unique mold and design with LED Screen Digital Display; it can offer mean value for each gas because long-term monitoring, the real-time data exist instability. 3.Spot check indoor air quality anywhere or leave device on for continuous monitoring This easy-to-carry air detector can help monitor air quality at home, kitchen, bedroom, office, school, car, hotel, travel, campingetc.especially in which has baby,child and pregnant woman. 4.This air monitor is easy to operate with just pressing the functional button, Updated user manual is very simple and easy to understand. The intelligent air tester can monitor the variety of the environment in a period your care about,You can take it anywhere to monitor air quality. At the same time, you can set a standard value of formaldehyde. When harmful substances exceed the standard, The corresponding area will flash to remind. Description : Measurement object: carbon dioxide Size: 90*70*40 (mm) Color: white, black Note: Due to manual measure, please allow 1-2mm deviation Actual item may be slightly different from the image due to monitor and ligth effect includes: 1xAir Quality Monitor