1、Powered by rechargable battery, the air quality monitor makes it easy to take measurements from one room to another in order to get an overview of the air quality in a home, workplace, school, a daycare centre or any other location. 2、The air quality monitor is also an essential tool to use when performing property inspections or when using any household tools to see if there is any abnormal amount of toxin release. 3、Intelligent detection of various types of gas. Most household gas can be detected, no need to worry about the applicability. 4、The measurement is displayed on a clear screen, small and light design for easy carrying. 5、Natural air flow detection technology is adopted to determine air quality problems more accurately. 6、Built-in polymer battery, energy saving and environmental Protections, long standby time. 7、Widely be used in home, office, enterprise, government, school and car, etc. 8、Detect and monitor air problems at any time to ensure the health of family members or employees. This product is a simple and reliable measuring instrument that combines ease of use and performance, it allows you to track 4 key air quality factors: TVOC, HCHO, CO2, AQI. Features: Powered by rechargable battery, the air quality monitor makes it easy to take measurements from one room to another in order to get an overview of the air quality in a home, workplace, school, a daycare centre or any other location. The air quality monitor is also an essential tool to use when performing property inspections or when using any household tools to see if there is any abnormal amount of toxin release. Intelligent detection of various types of gas. Most household gas can be detected, no need to worry about the applicability. The measurement is displayed on a clear screen, small and light design for easy carrying. Natural air flow detection technology is adopted to determine air quality problems more accurately. Built-in polymer battery, energy saving and environmental Protections, long standby time. Widely be used in home, office, enterprise, government, school and car, etc. Detect and monitor air problems at any time to ensure the health of family members or employees. Specifications: Main color: blue Material: ABS Screen size: 2.8in Detect error: ＜15％ Battery: 3.7V, 1000mAh Charging standard: 5V, 1A Standby time: about 240-360min Temperature: 18-50℃ Humidity: 10-70% HR Monitor fluctuate: 20%-50% Item size: 136 * 65 * 25mm / 5.3 * 2.6 * 1.0in Package size: 146 * 75 * 30mm / 5.7 * 3.0 * 1.2in Package weight: 187g Package list: 1 * Air Quality Tester 1 * USB Cable 1 * User Manual 1 * Air Quality Tester 1 * USB Cable 1 * User Manual