Introducing the Portable USB Rechargeable PM2.5 Detector Thermohygrometer Air Quality Analyzer. This compact device is designed to measure air quality, temperature, and humidity levels in your home or office. With its small size and easy-to-use features, it provides accurate readings to help you maintain a healthy living environment. The Portable PM2.5 Detector features a large screen that displays the PM2.5 index, indoor temperature, and humidity readings. This clear and convenient display allows you to easily monitor the air quality in any room of your home. The compact and portable design makes it easy to carry and use wherever you need it. One of the key features of this device is its USB rechargeable design, which ensures long-lasting use and convenience. You can easily recharge it using any USB port, eliminating the need for batteries. Additionally, the alarm function alerts you when the air quality is poor, allowing you to take immediate action to improve your home environment. With its accurate and reliable readings, the Portable PM2.5 Detector helps you monitor and maintain healthy indoor air quality. It is an essential tool for anyone concerned about the air they breathe. The device comes with a user manual for easy setup and operation. Key Features: Compact and portable design Large screen display USB rechargeable Alarm function Accurate and reliable readings