Description: 【5 In 1 Detection】: This Air Quality Meter combines the detection of temperature, humidity,  CO2 concentration, formaldehyde concentration, and into a unit for comprehensive indoor air quality detecting. 【High Accuracy Sensor】: The Air Quality Meter is equipped with a high accuracy sensor for accurate and reliable measurements, providing users with real and comprehensive air quality data. 【Real Time Display】: The air quality meter features a clear and easy to read display that shows real time detection data, allowing users to keep track of indoor air conditions at all times. 【Carbon Concentration Warning】: The 5 in 1 Air Quality Meter will sound an alarm when the carbon concentration exceeds the standard level to remind users to ventilate and ensure health. 【Material】: The Multifunctional Teater is made of plastic material, which is sturdy and can be used for a long time. Specification: 9cmx7cmx3.5cm/3.54inchx2.76inchx1.38inch Package Includes: 1 Air Quality Meter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!