Wireless weather station. Wireless transmission of outdoor temperature and humidity via up to three transmitters. Display of indoor temperature and humidity. Additional features include maximum and minimum values as well as frost alarm. Weather forecast with symbols. Radio clock with alarm and snooze function. Background lighting. A barometric pressure sensor measures changes at the location and calculates a weather forecast based on this data. The outdoor temperature and humidity are determined via a dedicated radio transmitter, while the indoor climate is measured using internal sensors. The integrated radio clock receives the time with second accuracy via the DCF77 signal from the atomic clock. Many useful functions such as frost alarm, maximum and minimum values, and background lighting complete the range of features. With two optionally available thermo-hygro transmitters, CASA offers the ability to monitor the indoor climate in additional rooms. TFA Dostmann. With over 1000 weather and measuring instruments, the German company TFA Dostmann is one of the leading companies in the industry in Europe. The TFA range is characterized by its own innovative technologies and exclusive designs, and is continuously developed in collaboration with meteorologists, IT specialists, and designers.