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 new air quality monitor, give it a try, it won,t let you down. Large Display Screen: This air quality monitor with a large display screen for you 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 for you to carry. Wide Applications: This CO2 monitor can be used in your home, office, destop, 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. Specifications: Material: ABS Color: black, white (optional) PM2.5 detecting ranges: 0-999ug/m³ PM10 detecting ranges: 0-999ug/m³ HCHO detecting ranges: 0-9.999mg/m³ TVOC detecting ranges: 0-9.999mg/m³ CO detecting ranges: 0-1000PPM CO2 detecting ranges: 400-5000PPM Recharging method: USB 500mA Type-c interface Battery: 1 * lithium battery, 1200mAh (included) Item size: 90 * 70 * 35mm / 3.5 * 2.8 * 1.4in Package size: 118 * 115 * 48mm / 4.6 * 4.5 * 1.9in Package weight: 200g / 7.1ounce Packing list: 1 * Air Quality Monitor