Use and Care Manual
6
3. Other Alarm Visual And Audible Indicators
Operational Mode Visual Indications Audible Indications Action/Note
Normal (standby) AC power:  Green LED on 
continuously. 
DC power: Green LED blinks 
approx every 60 sec.
Test (button press when 
no alarm condition is 
present)
(Note: Test is very loud, 
stand a few feet away.)
Red LED blinks in time with 
alarm pattern. 
• Single beep.
• 3 long beeps, pause, 3 long beeps, 
 4 quick beeps, pause, 4 quick beeps.
Perform button press once a week to 
verify proper alarm operation.
Smoke or CO Alarm 
Memory (unit has 
experienced a smoke or 
CO alarm event, or has 
detected 100ppm CO or 
greater.)
Smoke: Red LED blinks 
every 15 sec.
CO: 2 red LED blinks 
every 15 sec.
NOTE: Alarm memory is only retained 
for 24 hrs. 
Push button to clear Alarm Memory. 
Smoke Alarm Hush
TM
Mode 
Red LED blinks every 2 sec. After button push, smoke alarm 
pattern stops. (If there is too much 
smoke to allow Hush 
TM
, smoke alarm 
pattern continues.)
This feature is to be used only when 
a known alarm condition, such as 
smoke from cooking, activates the 
alarm.
Push button during Hush 
TM
 to clear 
Hush 
TM 
 and perform a test.
CO Alarm Reset  None After button push: CO alarm pattern 
stops.
Unit is conrming if CO is present or 
if it experienced a nuisance situation. 
Re-alarm means danger. Move to fresh 
air and call 911.
Initiating Alarm
(multiple alarms in an 
interconnected system)
Red LED blinks in time with 
alarm pattern indicating that this 
is the unit initiating the alarm 
in an interconnected, multiple 
alarm, system. 
NOTE: It is possible for more than 
one unit to detect a hazard and 
become an initiating alarm unit 
(Red LED blinking).
Unit in either Smoke or CO alarm 
mode.










