[Multifunctional Air Quality Monitor]This indoor air quality monitor can accurately assess temperature in Celsius, humidity levels and multiple air quality indicators, including formaldehyde concentration, total natural and synthetic volatile organic compounds (TVOC) that cause most odors ) and fine dust particles (PM2.5/PM1.0/PM10) penetrate deep into the respiratory tract and reach the alveoli. [Portable Air Quality Monitor]It is necessary to know the air quality where you live. Spot-check indoor air quality anytime, anywhere or leave devices on for continuous monitoring. This easy-to-carry air quality tester can help monitor air quality in your home, car, and hotel room. Lithium batteries provide portable power. Information is displayed on a clear 3.3inch LD color display. [Indoor Air Quality Monitor with Advanced Sensor]This air quality monitor has a total of 6 gas sampling ports, which can quickly inhale ambient air for real-time measurement. It combines a laser sensor to measure dust particle levels and a second electrochemical semiconductor sensor to test air quality, including formaldehyde and natural/synthetic organic compound levels. [Easy to Use Air Detector]This air detector is easy to operate and comes with detailed instructions. With the push of a button, you can take all real-time readings simultaneously. It is easy to carry a smart air quality monitor, which can help us monitor the air quality , kitchen, bedroom, office, school, car, hotel, travel, camping , parties, especially those with babies, children and pregnant women. [PM2.5 PM10/Monitor - Give You a Healthy Home]This indoor air quality monitor can help us detect air quality in time, especially when you move into a or renovate your house. This CO2 monitor can also help you know when your asthma may be worse and when to change the air filters inyour home. Tips: When using the device for the first time, please take the device to a place with air, turn on the device for 3 minutes to recalibrate the instrument. Colour:Black Material:plastic Package Contents: 1 x air quality monitor Only the above package content, other products are not included. Note: Light reflection 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.