1One 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 2LED Light Display: The humidity meter has a smart LED light display for easy viewing in the dark, to meet your needs 32 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 4Alarm 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 524 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 family1 x Room Temperature Monitor (Battery Not Included)1 x User Manual