Feature: 1. One Key Backlight: The room thermometer has a one key backlight, with soft brightness that does not hurt the eyes, with a large high definition screen 2. LED Light Display: The humidity meter has a smart LED light display for easy viewing in the dark, to meet your needs 3. 2 Placement Designs: The room thermometer has a back hanging hole and a stand design, which is in line with the human body's comfortable viewing angle 4. Alarm Clock Function: The humidity meter has an alarm clock function to wake up on time. The design of sensing holes on both sides ensures accurate detection data 5. 24 Hour Automatic Recording: The humidity meter can automatically record 24 hour real time monitoring of temperature and humidity to create a comfortable and healthy environment for the family Specification: Item Type: Room Temperature Monitor Material: ABS Product Size: Approx. 11 x 10 x 2.2cm / 4.3 x 3.9 x 0.9in Temperature, Humidity, Date (year, month, day), Clock, Screen Display: Support 12/24 Hour Clock: Support Daily Alarm Hourly Timekeeping Function: Support ℃/℉Temperature Display Temperature and Humidity Maximum and Minimum Memory: Support Blue Backlight Light Emitting Function: Support Temperature Measurement Range: 0℃~50℃ (-32℉~122℉) Temperature Display Resolution: 0.1℃(0.2℉) Temperature Measurement Accuracy: ±1℃(0℃~50℃) Humidity Measurement Range: 10% RH-99% RH Battery: 1 x 1.5V AAA Battery (Battery Not Included) Weight: Approx. 143g / 5.0oz. Package List: 1 x Room Temperature Monitor (Battery Not Included)1 x User Manual Note: Shipped Without Battery