Come and try this new type multifunctional air quality detector, compared with other air quality detectors, this detector can show you 6 different detecting results at the same time, and the detection function is more comprehensive. If you're looking for a quality monitor, give it a try, it 't let you down. Features: 6 In 1 Air Quality Tester: Come and try this new type multifunctional air quality detector, compared with other air quality detectors, this detector can testing PM2.5, PM10, HCHO, TVOC, CO and CO2 at the same time. Large Display Screen: This air quality monitor with a large display screen to see the detecting data more clearly, you can get the results easily. Portable Size: This monitor is small in size and you can use it on your desk without taking up too much desk space, also easy to carry. Wide Applications: This CO2 monitor can be used in your home, office, , hotel and other places. Built-in Multiple Sensors: This air quality monitor using infrared detection technology, laser-detection technology and electrochemical detection technology to show you the accurate data. Four Color Alarm: There are four different color to show the different qualities of the air being monitored: The green means the air quality is well and the colors ranging from yellow to orange to red mean worse air quality. Temperature Units Conversion: The temperature units can be switch between degrees Celsius and Fahrenheit and when the monitoring data exceeds the standard, sound will be emitted to indicate. : Material: ABS Color: Black PM2.5 detecting ranges: 0-999ug/m PM10 detecting ranges: 0-999ug/m HCHO detecting ranges: 0-9.999mg/m TVOC detecting ranges: 0-9.999mg/m CO detecting ranges: 0-1000PPM CO2 detecting ranges: 400-5000PPMRecharging : USB 500mA Type-c interface Battery: 1 x lithium battery, 1200mAh (included) Item size: 90 x 70 x 35mm / 3.5 x 2.8 x 1.4in Package Contents: 1 x Air Quality Monitor 1 x Charging Cable 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.