Description: 【5 In 1 Detection】: This Air Quality Meter combines the detection of temperature, humidity,  CO2 concentration, and formaldehyde concentration into a unit for comprehensive indoor air quality detection 【High Accuracy Sensor】: The Air Quality Analyzer 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 Temperature and Humidity Tester 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 【Design】: CO2 Monitors adopts a rechargeable design, simple appearance, practical, compact size, easy to carry, and store 【Material】: The Multifunctional Tester is made of plastic material, which is sturdy and can be used for a long time Specification: Material: Plastic Working voltages: 5V Charging method: USB 500mA Type C interface Charging time: about 4h Standby time: about 300-360 minutes (built in multiple sensors, high power consumption) Battery capacity: 1200mah Size Chart: 7 cmx3.5 cmx9 cm/2.76 inchx1.38 inchx3.54 inch Package Includes: 1x Air Quality Meter Note: Please allow slightly 1-2cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed.