Monitor CO2 levels and safeguard your family's health. Features temperature difference compensation calibration technology, assessing ambient temperature data for automatic calibration of test results. Long-term recording tracks formaldehyde/TVOC concentration trends. Versatile use in greenhouse cultivation, agricultural indoor air detection, household air detection, and more. APPLICATION: This air quality tester provides a comprehensive overview of air quality in homes, workplaces, schools, daycares, and other locations. POWER SUPPLY: Powered by 5V USB charging, it can be connected to a mobile power source for sealing space checks. APP SUPPORT: Our carbon dioxide detector is compatible with Android and iOS systems, allowing for remote data viewing. Features: Air Quality Meter - Color: White. - Material: ABS. - Size: 7.5x5 cm/2.95x1.97 inches. Power source: USB 5V. Connection mode: Wireless 4.0. Supports iOS 9.0 or higher/Android 4.3 or higher. TVOC detection range: temperature 5-35C, 0~9.999mg/m3. HCOC detection range: Temperature 5-35C, 0~9.999mg/m3. CO2 detection range: temperature 5-35C, 400-2000ppm. Temperature detection range: -10~50C. Packing list: 1 * Air Quality Meter