BRESSER Thermo/Hygro RC transmitter , compatible with all weather stations with 433 MHz transmission frequency.
This sensor is compatible with the following articles:
7001001, 7001030, 7001101, 7002500, 7003100, 7003101, 7004000, 7004001, 7004002, 7004110, 7004250, 7004300, 7004301, 7007000, 7007300QT5000, 7007300CM3000, 7008000, 7008001, 7009000.
The appropriate outdoor sensor for other weather stations can be found under the article numbers 7009994, 7009995 or 7009996.