Features: This detectors can detect the temperature, humidity, CO2, TVOC, HCHO, PM2.5, PM-1.0 ,PM-10 for you , can view the data you care about. The colorful screen allows you to see different- values at a glance, and the backlit display makes it easy to see data at night. This air-quality detecor can be held easily, and it also can be placed on your desk for use. Using air semiconductor and infrare sensors, high-performances chip, detection is more accurate, high accuracy. Stable characteristics and high reliability, durable for long time service. Specifications: Material:ABS Battery: Built-in 3.7V, 2000mAh Lithium-Battery Current:260mA Screen Size:2.8'' Package Includes: 1x Detector- 1x USB Cable 1x Manual note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.