With multiple induction holes design, our 3-in-1 alarm clock can be used to measure indoor humidity and temperature precisely. It also can be used to display date, time and calendar. Ideal compatible various places. Compared to other similar products on the market, our 3-in-1 alarm clock comes with a clear large LCD screen, easy to read. It is made of high-quality ABS, metal and PVC material. The length of this product is 11cm, the width is 9.2cm and the height is 2.5cm. This product is perfectly suitable compatible school, home, household, office and more. Item Name: Humidity Meter Material: ABS, Metal, PVC Temperature Measurement Range: Minus 20 Degree Celsius-70 Degree Celsius Humidity Measurement Range: 10-99 Temperature Measurement Accuracy: 0.1 Temperature Resolution: 0.1 Humidity Measurement Accuracy: 10-99 Humidity Resolution: 1 Temperature Measurement Error: 0.5 Humidity Measurement Error: 1 Battery: 2 x AAA Batteries(Battery Not Included) Features: User-friendly, Lightweight, Easy to Read Size Details: 11cm x 9.2cm x 2.5cm/4.33" x 3.62" x 0.98" (Approx.) 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 Humidity Meter