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WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT 

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. 

 
 

SONIC ALERT’S 1 YEAR LIMITED WARRANTY

 

 

The Sonic Boom Alarm Clock / Telephone Signaler Model 
SBT425ss is warranted against manufacturing defects in materials 

and workmanship for one(1) year from the date of purchase.  
Within this period Sonic Alert will repair or replace at our option 
the SBT425ss without charge for parts and labor.   Simply send 

the SBT425ss (postpaid) and a copy of your sales slip as proof of 
purchase to: 

Sonic Alert Inc., 1050 E. Maple Road, Troy MI 48083 

 
 

 

 

Made in China 

Sonic Alert 1050 East Maple Rd.  Troy, MI  48083 

www.SonicAlert.com

 1-800-566-3210 V/TTY 

 

 

 
 
 
 
 

The Lightning flash and 
arrowhead within the 
triangle is a warning sign 
alerting you of dangerous 
voltage inside the 
product. 

 
 
 
 
 

The exclamation mark 
within the triangle is a 
warning sign alerting you 
of important instructions 
accompanying the 
product. 

CAUTION: TO 
REDUCE THE RISK OF 
ELECTRICAL SHOCK, 
DO NOT REMOVE THE 
COVER (OR BACK) 
FROM THE PRODUCT. 
NO USER 
SERVICABLE PARTS 
INSIDE. REFER 
SERVICING TO YOUR 
SONIC ALERT 
DEALER. 

!

 

Sonic Boom Alarm Clock 

with Telephone Signaler & Bed Shaker  

Model SBT425ss 

 

OPERATION INSTRUCTIONS 

 

IMPORTANT- 

Please read these instructions carefully before use and retain for future 

reference. See operating instructions on back. 

 

Warning: 

To prevent fire or shock hazard do not expose this appliance to rain or moisture. Before 

connecting, make sure that the requirements specified on the apparatus corresponds to the available 
power supply i.e. AC 110V/220-340V (50Hz/60Hz) 
 

GENERAL DATA 

Power: Consumption:  8w, 110v / 60 Hz 
UL listed transformer (Underwriters Laboratories) 

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