Radio weather data transmitter module for the seven weather data from the MS multisensor. With internal antenna. Standby loss only 0.3 watts. For flush mounting. 45mm long, 45mm wide, 18mm deep. Supply voltage 24V DC from the 33mm deep switching power supply SNT61-230V/24V DC-0.25A, also 45mm long and 45mm wide. This switching power supply simultaneously supplies the MS multisensor including the heating of the rain sensor. If necessary, install a deep flush-mounted box for both devices together. This weather data transmitter module receives the seven currently recorded weather data brightness (from three directions), twilight, wind, rain and outside temperature once a second from the MS multisensor attached to the outside of the building via cable JY (ST) Y 2x2x0.8 and sends these as radio telegrams to the Eltako building radio with the following priority. Only one multisensor MS can be connected to a radio weather data transmitter module FWS61. However, several FWS61s can be connected to one multisensor MS. The external terminating resistor only has to be present for one FWS61. For additional FWS61s, however, it must be removed. The evaluation is carried out using a Professional Smart Home Controller, the radio multifunction sensor relay FMSR14, the actuators FSB14 and FSB71. When the supply voltage is applied, a learning telegram is sent immediately and after approx. 60 seconds two status telegrams with all current values. After that, transmission at least every 10 minutes, but also under the following conditions: Brightness values west, south and east each from 0 to 99 kLux with a change of at least 10%. Twilight values from 0 to 999 Lux with a change of at least 10%. Wind speeds from 0 to 70 m/s. From 4 m/s to 16 m/s, the current values are sent immediately 3 times at one second intervals and then further increasing values within 20 seconds. Decreasing wind speeds are sent gradually with a 20 second delay. Rain immediately 3 times at the start, after the end within 20 seconds. Temperature values from -40.0°C to +80.0°C every 10 minutes, together with all other values in a status telegram. Monitoring of the multi-sensor function and line break. If the weather data report from the MS multi-sensor is missing for 5 seconds, the FWS61 immediately sends an alarm telegram and then every 30 seconds again, which can be taught into an actuator as a button telegram to initiate further action if required. In addition, the two status telegrams with the values brightness 0 lux, twilight 0 lux, temperature -40 °C (frost), wind 70 m/s and rain are sent. If a message from the multisensor MS is detected again, the alarm is automatically canceled.