High-precision sensor dust sensor, more accurate and reliable. TVOC/HCHO sensors monitor harmful air pollution and help you track harmful gases. Color-coded indicator lights color-graded to indicate air quality and temperature and humidity levels for easy identification Health Helpers A healthy indoor environment can make you feel good. Measure the key data in your home, so that you and your family can live in a healthy environment. Widely used in new houses, offices, hospitals, schools, all kinds of furniture, hotels, new cars, etc. The measurement results are displayed on the high-definition screen. The small and light design is easy to carry, and it can detect and monitor air problems at any time to ensure health., Manufacturer: XZXXZSZ