Features: Small size and lightweight, easy to carry with. Can be used for office, home, bedroom, study room, etc. 2 types for you to choose, select according to your need. Come with magnet and double side sticker, can be placed wherever you like. High accuracy, high definition display, help you to know the temperature humidity anytime. Specifications: Material: Silicone Temperature Range: -20 to 601 Humidity Range: 10 to 905RH Size: Approx. 45x45x13mm/1.77x1.77x0.51in Type: / Note: 1xCR2032 battery needed.(NOT Included) Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Temperature Humidity Detector