Measure formaldehyde! I'm the industry leader. More professional, more accurate, and faster. A major upgrade for even greater professionalism. High-sensitivity formaldehyde detection technology with improved accuracy up to 300°C. Constant convection for greater stability. AI chip for fast and accurate performance. Smarter and easier to use. High-definition display for clear results. Full temperature and humidity detection for even greater accuracy. Compensates for and calibrates external temperature and humidity interference. Five-in-one for air quality monitor. Product dimensions: 90 x 35 x 70mm Color box dimensions: 130 x 92 x 45mm Unit weight: 165g Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.