Feature: 1. Plastic Material: Environmental detector is made of high quality plastic material, has strong and durable appearance and long service life 2. More Accurate: Dual air inlet induction design makes air circulation widely contact the internal chip, the induction sheet is more sensitive, and the data is more accurate, accurate to 0.1 degrees 3. Real Time Display: Environmental detector displays time, temperature and humidity, formaldehyde, PM2.5, TVOC values in real time, and the hazards are clear at a glance 4. Simple to Operate: This gas detector requires only the push of function button and a full page design to easily take all real time readings on first use 5. Support Bracket: There is support bracket on the back, with rain probe, the outdoor measurement data is more sensitive 6. Application: LED high definition large screen, the original distance is visible, suitable for laboratories, factories, workshops, hotels, bedrooms, warehouses, farms and other places Specification: Item Type: Air Quality Monitor Power Supply Voltage: USB 5V Measuring Range: Temperature: -40~80℃, Humidity: 0~99.9%RH, Formaldehyde: 0~9.99mg/m³, TVOC: 0~999gm/m³, PM2.5: 0~999ug/m³ Measurement Accuracy: ±0.5℃ ±3%RH Resolution: 0.1℃ 0.1%RH Temperature Alarm Upper Limit Value: (Low Temperature Alarm Value +1) ~120℃, Temperature Alarm Lower Limit value: -40℃ (High Temperature Alarm Value -1)℃ Humidity Alarm Upper Limit: (Low Temperature Alarm Value +1) ~99.9%RH, Humidity Alarm Upper Limit Value: 1~(High Temperature Alarm Value -1)%RH Formaldehyde Upper Limit Setting: (Low Formaldehyde Alarm Value +1) ~9.99gm/m³ PM2.5 Upper Limit Setting: (Low PM2.5 Alarm Value +1) ~999ug/m³ TVOC Upper Limit Setting: (Low TVOC Alarm Value +1) ~99.9gm/m³ Scope of Application: Used for laboratories, factories, workshops, warehouses, farms, etc. Plug Type: US Plug 100-240V Material: Plastic. Package List: 7 x Screw4 x Nut5 x Expansion Pipe4 x Washer1 x Plug1 x Charging Cable2 x U Shaped Card1 x Environment Detector1 x Bracket