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c) Outdoor Sensor
23 LED
24 Connection "WIND" for wind sensor
25 Battery compartment for 2 special rechargeable batteries (nominal voltage 1.5 V)
26 Connection "RAIN" for connecting the cable of the solar module
27 Rechargeable battery compartment lid
28 Solar cell
29 "RESET" button for resetting the outdoor sensor (and restarting the DCF reception attempt)
30 Connection "RAIN" for rain sensor