Air Quality Monitor, Multifunctional 6 in 1 CO2 Meter Air Quality Monitor Temperature PM2.5 TVOC HCHO Detector USB Charging, Test Carbon Dioxide Detector Temperature and Humidity Indoor(Black)

How to Use: Long press the switch to start detection. Specification: Item Type: 6 in 1 Air Quality Monitor Voltage: 5V Material: ABS Weight: Approx. 184g / 6.5oz Battery: Polymer Lithium Battery 1200mAh (Included) Display Mode: LCD Color Screen + Backlight Display PM2.5 Detection Range: 0-999?g/m³ HCHO Detection Range: 0-1999?g/m³ TVOC Detection Range: 0-1999?g/m³ CO2 Detection Range: 400-5000PPM Temperature Detection Range: 0-50? Humidity Detection Range: 0-99%RH Product Size: Approx. 9x7x3.4cm / 3.5x2.8x1.3in Package List: 1 x Detector 1 x Manual 1 x USB Power Cable