The clock has a positive LCD display with forecast, indoor / outdoor temperature (°C or °F) and humidity displayed. The clock features a continuous backlight function that illuminates the display when in a low-light environment to maximise legibility at night. 12 hour / 24 hour setting option. The outdoor sensor unit has an LCD display with outdoor temperature (°C or °F) and humidity displayed. The clock has a positive LCD display with forecast, indoor / outdoor temperature (°C or °F) and humidity displayed. The clock features a continuous backlight function that illuminates the display when in a low-light environment to maximise legibility at night. 12 hour / 24 hour setting option. The outdoor sensor unit has an LCD display with outdoor temperature (°C or °F) and humidity displayed. Crescendo beep alarm - The beep alarm gets more frequent and louder if you do not turn it off. Snooze / backlight function (Snooze interval is 5 minutes/Light illuminates for 10 seconds once manually activated) Clock dimensions: W13.5cm x H7.5cm x D4.5cm Sensor unit dimensions: W6.2cm x H6.2cm x D2.6cm Batteries: This Clock requires 2 x AA batteries to operate, and the sensor requires 2 x AAA batteries to operate however these are NOT INCLUDED., Weight: 0.00220462262 pounds, Manufacturer: Braun