Kidde NIGHTHAWK KN-COSM-B User Manual page 6

Features
• Permanent independent smoke and carbon
monoxide sensors.
* Smoke alarm takes precedence when both
fire and carbon monoxide are present.
• Alarm/Voice message warning system that alerts
you of the following conditions in the manner
described below, thus eliminating any confusion
over which alarm is sounding:
FIRE: The alarm/voice pattern is three long
alarm beeps followed by the verbal warning
message "FIRE! FIRE!". This pattern is repeated
until the smoke is eliminated. The red LED light
will flash while in alarm/voice mode.
CARBON MONOXIDE: The alarm/voice
pattern is four short alarm beeps followed by the
verbal warning message "WARNING! CARBON
MONOXIDE!". After four minutes the alarm/voice
pattern will sound once every minute until the
unit is reset, or the CO eliminated. The red Light
Emitting Diode (LED) light will flash while in
alarm/voice mode.
LOW BATTERY: When the batteries are
low and need replacing the red LED light will
flash and the unit will "chirp" one time, followed
by the warning message "LOW BATTERY" This
cycle will occur once every minute for the
first hour. After the first hour the red LED light
will continue to flash every minute accompanied
by the "chirp" only sound. The voice message
"LOW BATTERY" will sound once every fifteen
minutes during the "chirp" only cycle.This will
continue for at least seven days.