[Advanced Multigas Detection]Equipped with a professional-grade formaldehyde sensor and the ability to detect various volatile organic compounds (TVOCs), this air quality monitor provides a comprehensive analysis of indoor air quality, helping you stay informed about your environment. [Intelligent & Precise]Features the SEN+ algorithm for intelligent calibration, which adapts to various complex environments. [User-Friendly Design]Designed for simplicity and ease of use with a one-button start and easy calibration. The color display is straightforward, complemented by a three-color warning light system, making it accessible for both adults and children to operate. [Essential for Healthy Living]Monitor your living space's air quality with our easy-to-read LCD digital color screen. It categorizes air quality into three levels: good (green), light pollution (yellow), and moderate pollution (red), allowing you to take necessary actions based on specific. [Versatile Application]Ideal for use in homes, offices, cars, hotels, and bedrooms. For accurate readings, ensure to close doors and windows during testing. (RC3002 English version) AA batteries are not included in the shipment. The appearance may vary slightly between different production batches, but this does not affect the use. Color: As Shown Material: plastic Package Contents: 1 * air quality test