Description: Featuring alarm clock, week display, outdoor humidity, indoor humidity and weather forecast, the product is multifunctional and practical. You can read the information from any angle clearly with 3 light mode because the large LCD screen provides you comfortable sight and rich information Made of high quality ABS material, it is durable and be used for a long time. The length of main unit is 13.5cm, the width is 13.5cm and the height is 3cm. The length of sensor is 3.4cm, the width is 2cm and the height is 9.2cm. It is suitable for indoor and outdoor use. Item Name: Hygrometer Material:ABS Power Supply: Battery Powered/USB Charging Battery Model: AAA Battery Batteries: Main Unit: 2 x AAA Batteries, Sensor: 2 x AAA Batteries (Not Included) Size:13.5cmx13.5cmx3cm/5.31inx5.31inx1.18in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes: 1 X Sensor Base 1 X USB Charging Cable 1 X Sensor 1 X Thermometer