Z-Wave Range Test
The FIBARO Dimmer 2 incorporates a Z-Wave network range tester. Follow the instructions below to test the range with the main controller:
1) Press and hold button B until the LED turns purple.
2) Release button B.
3) Press button B again, briefly.
4) The LED indicates the range of the Z-Wave network.
GREEN - direct communication
YELLOW - indirect communication (via one or more other Z-Wave devices)
PURPLE - communication at the edge of range
RED - no communication
5) To exit the Z-Wave range test function, briefly press button B.