Features: This indoor air quality monitor delivers high precise formaldehyde detection using advanced sensors technology, ensuring accurate and reliabled measurements for comprehensive pollution assessment. Featuring a real time LED/LCD display for instantly readings of formaldehyde and TVOC levels, it boasts a simple button operations and multifunctional capabilities for easy, air quality analysis. Ideal for homeowners and office professional, this portable air quality tester helps families and workers maintain a healthy indoor environment by monitoring harmful gas effectively. Perfect for use in various indoor settings like bedrooms, living rooms, or workplaces, it allows for convenient air quality tracking across different rooms to identify potential hazards. Crafted from ABS materials, its compact and lightweight design makes this formaldehyde detector easy to carry for assessments in any location. Specifications: Component:ABS. Size:Approx.172x82x31mm/6.77x3.22x1.22inch Measuring ranging: 0-1.999mg/m³. Measurement accuracy: 0.001mg/m³. Resolution: 320x240. Power supply methods: Direct power supply from Type C interfaces. Formaldehyde ranging: 0-1.999mg/m³; formaldehyde standard value: 0.1mg/m³. TVOC ranging: 0-9.999mg/m³; TVOC standard value: 0.6mg/m³. PM2.5 ranging: 0-999μg/m³. Package Includes: 1pcs Indoor Air Quality Monitor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.