Features: 9 In 1 Air Quality Detector: This detector can detect the temperature, humidity, PM2.5, PM10, HCHO, TVOC, CO, CO2, at one time, you can view the data you care about at any time.<br> LCD Color Display with Backlight: The colorful screen allows you to see different values at a glance, and the backlit display makes it easy to see data at night.<br> Portable Size: This air quality detecor can be held easily, and it also can be placed on your desk for use.<br> Large Capacity Battery: This air quality detector with built-in lithium battery power supply, the large-capacity battery can provide a long service time and can be recharged in time when the power runs out.<br> Advanced Detection Technology: The HCHO and CO adopting electrochemical detection technology, TVOC and CO2 adopting semiconductor detection technology, PM2.5 and PM10 using infrared sensors.<br> :<br> Detecting ranges:<br> Temperature: 0-70<br> Humidity: 0-99 %RH<br> HCHO: 0-9.999 mg/m<br> tVOCE: 0-9.999 mg/m<br> PM2.5: 0-999 /m<br> PM10: 0-999 /m<br> CO: 0-5000 PPM<br> CO2: 0-5000 PPM<br> : 0-999<br> Working voltage: 5V<br> Battery: 1 * lithium battery, 1200mAh (included)<br> Recharging port: Type-C<br> Material: plastic<br> colour: black<br> Package Contents:<br> 1 x 9 In 1 Air Quality Detector<br> Only the above package content, other products are not included.<br> 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.