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• In standard operation mode the red LED flashes once every 40 seconds
• When alarm is in hush mode the red LED will flash once every 8 seconds
•  In low battery mode an audible beep will sound together with the red LED flash every 40 seconds.  

This indicates low battery

LED INDICATORS

• Pushing the test button in standard operating mode will put alarm into hush mode
• The red LED will flash once every 8 seconds
• This mode is particularly useful for kitchen areas
• The alarm will only stay in the hush mode for approximately 10 minutes and will then reset itself
Note: when using the hush mode the source of the smoke must be monitored

•  Mark the location of the fixing holes and drill the holes ensuring not to infringe with any joists,  

gas / water pipes or electrical cables

• Fix the base mounting bracket with the aid of wall plugs and screws
• Rotate the alarm clockwise onto the base mounting bracket until it clicks into position
Note: Ensure that the alarm is securely connected to the base mounting bracket. Test each smoke 
alarm to be sure it is installed correctly and operating properly.
1: Do not use an open flame to test the alarm. You may ignite and damage the alarm or your home.
2: Test the alarms weekly and when no one has been at home for several days.
3:  Stand at an arm’s length from the unit when testing. Test all smoke alarms weekly by carrying 

out the following step.

4:  Firmly press the test button for at least 5 seconds. The alarm will sound 3 short beeps – wait for 

1.5 seconds, then repeat the test and release the button when complete. The alarm may sound 
for up to a few seconds after releasing the test button.

HUSH MODE

CLEAR CODE MODE

LINKING ALARMS

Step 1: On the primary alarm, hold down the test button for 10 audible beeps (approx. 14 seconds) 
(entering wireless coding mode). Red LED will be on solid red
Step 2: On secondary alarm, press the test button once (entering learning mode). Red LED will 
shimmer approx. 10 times and this will be replicated on the primary alarm
Step 3: Repeat step 2 on all additional alarms that you wish to connect to the circuit 
Note: A maximum of 12 units can be connected together within the 30m range

Step 1: Press and hold down test button for 13 audible beeps (approx. 16 seconds) and release, then 
press test button twice (the red LED will be off after this process)

DT004 INSTRUCTIONS_WEB.indd   4

20/06/2017   16:47

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