GB20
receiver will now indicate the door
signal in an optical way.
When the battery of receiver is
drained, signal indicator will flash.
You can replace the used battery
with a new one of the same type.
Setting the volume
Press the volume button
3
until the
desired volume is reached. There are
a total of 4 possible volume settings:
very loud, loud, medium, soft.
Selecting the chime
Note: The product has 17 different
chimes.
Press the melody selection button
2
. The first audible signal sounds.
Press the melody selection button
2
again to move on to the next
audible signal.
Repeat this process until you have
selected your desired audible sig-