Feature: 1. Multi Function: This digital thermometer can display humidity percentage, alarm clock, calendar, indoor and outdoor temperature, and is powered by AAA batteries (including). 2. Digital Display: The humidity meter features a large digital display that clearly displays the humidity temperature and is very easy to read. 3. External Waterproof Probe: Our outdoor and indoor thermometer is equipped with an external waterproof probe with 1.5m sensor cable, flexible and convenient to use. 4. Applicable Scenes: This digital thermometer is very suitable for aquariums, schools, greenhouses, garages, warehouses, baby rooms, laboratories and gardens. 5. Convenient Design: The multi functional digital thermometer has a support bracket behind it, so you can hang up our electronic thermometer or put it on the table. Specification: Item Type: Digital Hygrometer Thermometer Material: Plastic Gross Weight: 150g / 5.3oz Temperature Measurement Range: -20°C to +60°C(-4 ℉-+140℉) Battery: AAA battery (included). Package List: 1 x Digital Hygrometer Thermometer(Battery Included)1 x User Manual