Powered by a single button battery (not included). Easy to install and helps reduce packaging waste. Compact design with a small footprint that fits in tight spaces. Ideal for small apartments, dorm rooms, or any limited area. LCD display for easy reading. Clear readings of temperature and humidity at a glance. Flexible placement options. Adhesive backing plus the ability to stand or mount on a wall for convenient placement anywhere. Function and performance. Monitors temperature and humidity and displays readings clearly for quick reference, with energy efficient operation. Use scenarios - In a studio apartment or small room to maintain comfort and monitor moisture levels. - On a kitchen wall or in a bathroom to track humidity changes during cooking or showers. - In a closet, pantry, or laundry area to protect stored items from moisture damage.