Product description A simple, versatile environmental indicator that continuously monitors room conditions and presents clear, easy-to-read feedback. Key benefits Reliable automatic calibration: Keeps the device adjusted over time so readings remain consistent without frequent manual recalibration. Readable in any lighting: Manual screen brightness control lets you tailor visibility for bright rooms, dim spaces, or nighttime use. Instant visual feedback: Color changes and facial expressions display the environment’s quality in a realistic, easy-to-understand way so you can act quickly. Flexible placement: Designed to be used on a table or hung on the wall to suit the layout of your space. What it does Continuously assesses environmental quality and communicates status using color and expressive icons. Self-calibrates to maintain accurate baseline performance. Allows manual adjustment of screen brightness to improve readability and reduce distraction. Practical applications Home: Place on a living room shelf or hang in a nursery to monitor indoor conditions and respond when the environment needs ventilation or attention. Office and meeting rooms: Put on a desk or wall to give staff and visitors clear, at-a-glance awareness of room quality and comfort. Classrooms and childcare: Mount on a wall or set on a counter to help teachers and caregivers maintain a healthy and comfortable setting for children. Why customers choose this device Makes environmental status immediately understandable without needing technical knowledge. Reduces the effort required to keep readings reliable thanks to automatic calibration. Fits different room layouts with simple table-top or wall-mounted options and brightness control for any lighting condition.