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10. Operation And Testing
This model meets the latest residential smoke alarm standards, which includes enhanced  
resistance to nuisance alarms from cooking.
Operation
The alarm is operating once it is activated and testing is complete (see “TESTING” below). When  
products of combustion (smoke) are sensed, the unit sounds a loud alarm with voice messages.  
See Section 1 for alarm signal descriptions.  
Testing
 WARNING: Do not attempt to test this unit with retail “canned smoke” products. Those 
products are intended for use by trained professionals and produce inconsistent results when 
misused. Over-application of canned smoke can permanently damage the alarm.
Self-Testing
This model is equipped with internal, self-testing components that are always checking to  
ensure the device is operating as expected. (Weekly manual testing is still required. See below.)
Manual Testing
NOTE: When pushing the Test button, use only your finger or thumb. Using any other instrument(s) 
(such as a broom handle) is strictly prohibited, as it may damage the alarm.
Test your alarm weekly by pressing and releasing the button quickly. A quick beep will confirm the 
button has been pushed followed by the test sequence. See Other Alarm Visual and Audible Indicators 
table. The alarm  (and any interconnected units) will sound if the electronic circuitry, horn, speaker, and 
battery are working. If the alarm or voice does not sound, or gives erratic or low volume sound, the unit 
must be replaced. See Permanently Disable Alarm / Discharge Battery section to determine how to 
prepare the unit for shipment or disposal.
 WARNING:  DUE TO THE LOUDNESS OF THE ALARM, ALWAYS STAND ABOUT 2.5 FEET 
AWAY FROM THE UNIT OR USE EAR PROTECTION WHEN TESTING.
 WARNING:  DO NOT USE AN OPEN FLAME TO TEST YOUR ALARM, YOU COULD DAMAGE 
THE ALARM OR IGNITE COMBUSTIBLE MATERIALS AND START A STRUCTURE FIRE.
Chirping
When End of Unit Life or Low Battery chirping begins, you can temporarily silence these chirps 
by pressing the button. Other fault/error chirps cannot be silenced. Take appropriate action as 
described in the Troubleshooting Guide.
 WARNING:  REPLACE UNIT AS SOON AS POSSIBLE WHEN IN END OF UNIT LIFE OR LOW 
BATTERY MODE. SEVEN 7 DAYS AFTER END OF UNIT LIFE BEGINS, THE NOTIFICATIONS  
CANNOT BE SILENCED, AND SMOKE DETECTION CANNOT BE GUARANTEED. REPLACE  
IMMEDIATELY!