[MULTIFUNCTIONAL AIR QUALITY TESTER]:This indoor air quality monitor with Wi-Fi functionality accurately assesses temperature(in C/F), humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10). View air quality data anywhere using the Tuya Smart app found on or . [UPGRADED FAN & SENSORS]: This air pollution tester has a built-in fan to quickly draw in ambient air to allow real-time measurements that can be viewed remotely. It incorporates a sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to test air quality including formaldehyde and natural/synthetic organic compound levels.And uses the high-performance computing chip, which can accurately detect the air quality of the surrounding environment. [REAL TIME MONITORING]: mold designed air quality monitor with 4.3-inch LCD display,which directly and clearly displays each piece of air data (/m3 and ppm),while providing real-time value, the hourly trend graph of these gases for the past 8 hours and environmental recommendations to perfectly display air quality. [EASY OPERATE & PORTABLE]:Just press the function button to easily operate the air monitor. The easy-to-read numbers and the support of the alarm sound will let you know if your air is unsafe.This air quality meter is light and easy to carry.The 3000 mAh lithium battery provides extended portable power when DC 5V micro-USB charging is . [APP CONNECTION]: Connect to your smartphone's app via wifi and download the Tuya Smart app on or ,at the same time, you can create your family group on the APP and invite your lover join in,which can check your indoor air quality simultaneously. Colour: black + silver Material: ABS Size: 145 x 78 x 98mm Package Contents: 1 x air quality detector 1 x usb line 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.