7.1 Installing & inserting batteries
The smoke detector cannot work without batteries or when batteries are empty.
For safety reasons, do not use rechargeable batteries; use only non-rechargeable batteries.
For safety reasons, the smoke detector cannot be attached to the mounting plate when no
batteries are inserted.
Turn the upper part of the smoke detector to the left (counter-clockwise) to detach it from
the mounting plate.
Use the mounting plate as a template and mark the holes to be drilled in the two outer
recessed openings.
Fasten the mounting plate with suitable screws; use do-
wels, if necessary. Ensure you do not damage any wires
or pipes during fastening or drilling.
Because the product is heavy, we do not recom-
mend using adhesive pads for the installation for
safety reasons.
Ensure the correct polarity when inserting. Note the pola-
rity markings inside the battery compartment.
Put the smoke detector on the mounting plate and lock it
in place by turning its upper part to the right (clockwise).
After installation, check the smoke detector for functionality by briefly pressing the “Test”
button in the centre of the smoke detector. The smoke detector will beep twice, and the
button will start to flash red. Also, see chapter “Function test”.
The smoke detector is now ready for use!
7.2 Battery replacement
When the battery is empty, the red LED flashes twice every 40 seconds. Two short beeps
are emitted at the same time. In that case, replace the flat battery with a new one.
Check the smoke detector once a week and after every battery change by briefly pressing
the “Test” button in the centre of the smoke detector. The smoke detector will beep twice,
and the button will start to flash red. Follow the instructions in the chapter “Function test”.
Proceed as follows:
Turn the upper part of the smoke detector to the left (counter-clockwise) to detach it from
the mounting plate.
Replace the battery. Insert a new battery with the correct polarity. Note the polarity mar-
kings inside the battery compartment.
Put the smoke detector on the mounting plate and lock it in place by turning its upper part
to the right (clockwise). For safety reasons, the smoke detector cannot be attached to the
mounting plate when no batteries are inserted.
Function test
Under normal operation, the red LED near the “TEST” button flashes briefly every 40 se-
conds.
Briefly press the “TEST” button to check the alarm tone. The wireless smoke detector will
emit three beeps twice, and the button will start to flash red. This indicates that the smoke
detector and batteries are functioning correctly. When no alarm tone sounds or the LED
does not flash, batteries may be empty. Replace the batteries and perform a new function
test. If this does not help, replace the smoke detector.
If an alarm tone seems too loud or too unpleasant to your ear, use hearing protection
during the function test! It is better when a real alarm sounds loud such that even a
sleeping person or the one with impaired hearing can hear an alarm.
It is strongly recommended that you check the smoke detector weekly to ensu-
re proper operation. Wireless transmission can be checked by blowing cigarette
smoke into the smoke detector. Accessory retailers offer special test sprays for
smoke detectors.
Installation place for minimum
protection:
1. Bedroom
3. Bedroom / other living space
(e.g. children‘s room)
Installation place for maximum
protection:
1. Bedroom
2. Hallway
3. Bedroom / other living space
(e.g. children‘s room)
4. Staircase
5. Living room
6. Staircase
Smoke detectors should be installed in every room for maximum protection. Do not install
them in kitchens, bathrooms or other premises where vapour is generated.
Install smoke detectors near bedrooms. Also, plan for escape routes from bedrooms; those
rooms are usually the farthest from the exit. If there is more than one bedroom, install an
additional smoke detector in every bedroom.
This also extends to other rooms with sleeping facilities (such as children‘s room, guest
room, etc.).
Provide additional smoke detectors to protect stairways, which can act like chimneys for
smoke and fire and may contribute to their spread.
Install at least one smoke detector on each floor level.
Locate a smoke detector in every room where there are electrical appliances or equipment
(e.g., a TV set in the living room). Often those devices, in particular, pose a risk of heavy,
toxic smoke formation.
It is recommended to install two or more smoke detectors in larger rooms.
Smoke and other combustion residues rise to the ceiling and spread horizontally. Mount
the smoke detectors on the ceiling in the centre of the room, this place is the nearest to all
other points in the room.
Ceiling mounting is recommended in conventional residential buildings. In caravans or mo-
bile homes mounting on a vertical wall is required instead to prevent a thermal barrier that
may form at the ceiling.
When installing the smoke detector on the ceiling, ensure a free space of at least 50 cm
from the sidewall and 60 cm from each corner.
Install the smoke detector as close to the centre of the ceiling as possible.
The smoke detector should be attached to a brace suspending from the ceiling or similar
spots. Ensure to maintain the minimum distances to corners and walls. In rooms with slo-
ped ceilings (top floor), a separate smoke detector should preferably be installed on each
slope.
A minimum free space of 150 cm should be provided between the smoke detector and
lights, exhaust fans, air conditioners and air inlet/outlet openings.
6.3 Unfavourable installation sites for smoke detectors
The following installation sites should be avoided:
Kitchen/bathroom and WC: The cooking fumes or water vapours present in these rooms
may trigger a false alarm.
Garages: A vehicle‘s exhaust fumes may trigger a false alarm in garages.
Near heaters or air conditioners.
Near (<1.5 m) fluorescent lights.
Rooms where the temperature may fall below +5 °C or rise above +38 °C.
Gable roof: Hot air (e.g. in summer or when heating the room) may accumulate here,
which would prevent the fumes of a dangerous smouldering fire from reaching the smoke
detector.
Ceilings in caravans or similar: The sun heats the room ceiling and hence the air in the
upper part of the caravan. The hot air keeps the fumes of a dangerous smouldering fire
from reaching the smoke detector.
Stationary walls in residential buildings: Here the smoke is detected very late, which causes
a delayed alarm.
Corners in buildings: Here the smoke is detected very late, which causes a delayed alarm.
7 Controls
1. “Test” button with red LED
2. Beeper opening (sound
outlet)
3. Smoke sensor
4. Battery compartment
5.2 Battery safety information
Never place rechargeable batteries in the smoke detector.
Use only non-rechargeable batteries to ensure a safe and the longest possible
operation.
Keep batteries out of the reach of children.
Do not leave batteries lying around, as they constitute a choking hazard for
children and pets. Seek immediate medical attention if a battery is swallowed.
When handling leaking or damaged batteries, always use suitable protective
gloves to avoid burning your skin.
Batteries must never be short-circuited, disassembled or thrown into the fire.
This may cause an explosion!
Never attempt to recharge non-rechargeable batteries, as this may cause an
explosion.
Ensure that the batteries are inserted in the correct polarity (observe the plus/+
and minus/- signs).
6 Selecting the installation location
6.1 General information
What makes the fire so dangerous is the toxic smoke produced during combustion rather than
the flame in the first place. A few breaths, especially while asleep, can render a person uncon-
scious. That is why the installation site must be chosen carefully.
6.2 Recommended installation sites for smoke detectors
1. Ceiling
3. Ideal site to install the smoke detector
2. Heat, fire, smoke
4. Corner (dead space, never install here!)
Living space
Examples
Installation place for minimum protection:
1. Kitchen (no smoke detector)
2. Bedroom
3. Bedroom / other living space (e.g. children‘s room)
4. Bathroom (no smoke detector)
5. Bedroom / other living space (e.g. office)
Installation place for maximum protection:
1. Kitchen (no smoke detector)
2. Bedroom
3. Bedroom / other living space (e.g. children‘s room)
4. Bathroom (no smoke detector)
5. Bedroom / other living space (e.g. office)
6. Living room
