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DB100/200 Doorbell Signaler
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TR75VR Telephone Signaler
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BC400 Baby Cry Signaler
To turn
the clock’s remote receiver on for use with a remote
transmitter, locate the RECEIVER ON/OFF button and set it to ON
Working with Remote Transmitter
Press
and 
hold the ALARM OFF button for 3 seconds to toggle RECEIVER
between ON/OFF status.
There is a round indicator light at the
top right corner
to indicate
status. The software default setting is ON. 
If you are not using Sonic Alert remote transmitters, or if you do not want the clock to respond to a transmitter, set the mode to OFF.
Receiver On/Off