Radio controlled clock available for DCF, MSF JJY and WWVB version. Perpetual Calendar with Date, Month and Day of Week Date of Week in 7 languages selectable: English, French, German, Italian, Dutch, Spanish and Danish. (DCF) Alarm & Snooze Indoor temperature &humidity with trend indicator Outdoor temperature and humidity data transfer from maximum 3 different wireless remote sensor units by RF 433 MHz transmission frequency. 5 level weather forecast: Sunny, partly sunny, cloudy, rainy, storm. Temperature alert Max/Min memory for indoor and outdoor Low Battery indicator. LED back light Transmission range: 30 meters, open area Temperature range: 0 ~+50 (indoor) -50~+70 (outdoor)