Feature:The projection function supports simultaneous projection of time and temperature. There are switches to choose sustainable projection or turn off projection "indoor temperature + time" and "outdoor temperature + 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/medium/low/not bright)Specification:Power supply: CR2032 lithium battery (No-included)Plug type: US plugDCF/WWVB/MSF automatic timing function: YesWaterproof grade: 4Support display languages: English, German, Italian, French, Spanish, Dutch and DanishDisplay: time 12/24, date, weekTemperature detection: indoor measurement range: -9.9 - 50 (15 - 122); outdoor measurement range: -20 - +60 (-4 - 140)Pressure measurement: 600 hPa/mb~1100 hPa/mb (17.72 inHg~32.48 inHg)Humidity detection: 20% RH - 95% RHProduct dimension: 16.8*10*3.8cm / 6.6*3.9*1.5inWeight: 445g / 15.7ozPackage list:1 * Projection alarm1 * Power adapter1 * User manual1 * 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..