b) Outdoor Sensor
D1
Red LED for display of the radio transmission
D2
Outdoor temperature
D3
Outdoor humidity
D4
Battery compartment
D5
Aperture for wall mounting
D6
Button „RESET" (recessed)
D7
Button „°C/°F"
D8
Channel selection switch (channels 1, 2 or 3)
D9
Unfoldable base
50