This outdoor sensor is offered together with the professional climate Logger Pro Klimalogg TFA 30.3039 incl. Radio transmitter 30.3180. As this radio station was advertised as outdoor stations, I've assumed that it is the model only shows an especially moisture and spritzwasserresitententen sensor, but otherwise fits the logger. Only the manual of Klimalogg Pro TFA 30.3039 clarifies the fact that only the radio station category TFA 30.3180 with this logger are compatible. This is annoying for everyone involved.