Feature:The projection function supports simultaneous projection of time and temperature. There are switches to choose sustainable projection or turn off projection "indoor temperature and time" and "outdoor temperature and time" alternately.Double alarm clock function, can choose "Monday to Friday ring", "only weekend ring" or "seven days a week ring".Weather forecasting function for the next 8 hours.Indoor climate comfort and indoor heat index are displayed.Outdoor Sensors: Up to three outdoor wireless sensors are supported at the same time (packaging contains only one). 433.92MHz RF Sensing Frequency, 60m Sensing Range.Backlight: Backlight is long and bright in 4 options (high or medium or low or not bright)Specification:Power supply: CR2032 lithium battery (No-included)Plug type: US plugDCF or WWVB or MSF automatic timing function: YesWaterproof grade: 4Support display languages: English, German, Italian, French, Spanish, Dutch and DanishDisplay: time 12 or 24, date, weekTemperature detection: indoor measurement range: -9.9 - 50 (15 - 122) outdoor measurement range: -20 - and60 (-4 - 140)Pressure measurement: 600 hPa or mb-1100 hPa or mb (17.72 inHg-32.48 inHg)Humidity detection: 20 percent RH - 95 percent RHProduct dimension: 16.8x10x3.8cm or 6.6x3.9x1.5inWeight: 445g or 15.7ozPackage list:1 x Projection alarm1 x Power adapter1 x User manual1 x SensorNote:Please kindly make a note if you need any plug adapter.The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product..