Kidde P3010CUCA User Manual page 6

1. Introduction
IMPORTANT: Read all instructions before installation and keep
this user guide near the alarm for future reference.
Do not try to repair the smoke alarm yourself. Refer to the
instructions in Warranty section for service.
This alarm detects products of combustion using photoelectric
technology and carbon monoxide using an electrochemical cell. Many
times throughout this User Guide, we will refer to Carbon Monoxide as
"CO."
This alarm is acceptable for use in all residential applications where a
smoke or CO alarm is required, but locations near kitchens or cooking
areas should be carefully considered to give the maximum nuisance
alarm protection.
After ten (10) years of cumulative power up, this unit will "chirp" two
times every 30 seconds. This is an "operational end of life" feature
which will indicate that it is time to replace the alarm.
To help identify the date to replace the unit, a label has been affixed to
the side of the alarm. Write the "Replace by" date (10 years from initial
power up) in permanent marker on the label prior to installing the unit.