Feature: 1. 3.7in LCD Display: This humidity sensor adopts 3.7in large LCD display with clear backlit, reading more easily in different environments and angles. 2. 24 Hours Records: This humidity sensor shows maximum and minimum humidity and temperature records for the last 24 hours, so you can take measures in advance. 3. 3 Button Control: This digital hygrometer features 3 buttons smart design, Celsius degree and Fahrenheit degree switchable, easy to operate. 4. Comfort Level Indicator: This digital thermometer has 3 levels of symbols, including wet/comfort/dry, which help you maintain a comfortable environment in your home. 5. Wide Application: This indoor thermometer is suitable for home, bedroom, baby room, kitchen, greenhouse, guitar room, office and wine cellar. Specification: Item Type: Room Thermometer Material: ABS Battery: Dry Battery, AAA x 2, 1.5V(Battery Not Included) Product Size: Approx. 8.7 x 9.2 x 2.3cm / 3.4 x 3.6 x 0.9in ( Manual Measurement, Slight Error May Exist ) Weight: Approx. 89g / 3.14oz. Package List: 1 x Room Thermometer (Battery Not Included)1 x User Manual