1,The upgraded 6-in-1 air quality detector use highly accurate and professional sensors to measure PM5, PM10, PM1, TVOC, Benzene, particle, HCHO, AQI. 2,Anti-interference Technology, adopting 12 smart chips with digital detection signal amplification, hardware and software arithmetic, more precise reading. 3,Large LCD display make it clear and easy to read data. 4,Built-in high capacity Lithium-ion battery 5,Multifunctional air quality monitor device with high precise electrochemical formaldehyde sensor, laser particle sensor, TVOC sensor and PM5 sensor improves the accuracy. Features: The upgraded 6-in-1 air quality detector use highly accurate and professional sensors to measure PM 2.5, PM10, PM1, TVOC, Benzene, particle, HCHO, AQI. Anti-interference Technology, adopting 12 smart chips with digital detection signal amplification, hardware and software arithmetic, more precise reading. Large LCD display make it clear and easy to read data. Built-in high capacity Lithium-ion battery Multifunctional air quality monitor device with high precise electrochemical formaldehyde sensor, laser particle sensor, TVOC sensor and PM 2.5 sensor improves the accuracy. Innovative 3D cycle convection vents for better testing. Specification: Condition: Material: ABS Screen Type: LED Display Power Supply: 2200mAh lithium battery Input: 5V/1A Working Temperature: -10-45℃ Pressure: 86Kpa-106Kpa Weight: 420g Size: 15 x 7 x 4.3cm / 5.9 x 2.76 x 1.69in Color: As Shows in Pictures Package List: 1 x Air Quality Monitor Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. 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.