Features: This 5 in 1 formaldehyde detector accurately measures CO₂, TVOC, temperature, and humidity simultaneously, providing comprehensive air quality monitoring with professional sensors for stable results. Featuring a lightweight ABS housing and high resolution LCD screen, the portable analyzers delivers real time data visualization and extended battery life for continuous operate. Ideal for health conscious families, property managers, and indoor air quality professional requiring precise environmental assessments in residential or commercial spaces. Perfect for monitoring nurseries, newly renovated offices, or school classrooms where multiple air parameters require simultaneous tracking and documentation. Its auto calibration systems maintains measurement accuracy across season while the compact design enables effortless relocation between testing site without compromising data integrity. Specifications: Component : ABS Dimensions: about 90x55x22mm/3.54x2.2x1inch Package Includes: 1xFormaldehyde analyzers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.