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Operating the signalling unit with power supply
Instead of using batteries, the signalling unit can be operated using an external power supply
(not included, available separately). This must be able to supply an output voltage of 5 V/DC
and a current of at least 500 mA.
The power supply must have a round low-voltage plug with an exterior diameter of 3.5 mm and
an interior diameter of 1.3 mm; the outside contact must be the negative terminal (-) and the
inside contact the positive terminal (+).
Take the batteries out of the signalling unit if you operate it. using a power supply.
Function of the PIR sensor in the sensor unit
The PIR sensor integrated in the sensor unit responds to temperature changes within the detec-
tion range, e.g., if a person or an animal with a temperature difference from the background
enters the detection range.
The range of detecting motion is determined by several factors:
• The installation height of the sensor unit
• The temperature difference between the moving object and the background (ambient)
• The size of the object
• The distance of the object from the sensor unit
• The direction and speed of movement
• Ambient temperature
The detection range can be restricted by covering the curved diffusion panel of the
sensor unit's PIR sensor with an opaque cover such as a strip of black insulating
tape.
Assembly
For the wireless range between sensor unit and signalling unit, see the chapter "Range".
a) Sensor unit
The horizontal detection angle is approx. 100°. The lens system of the diffusion panel does not
create a complete coverage of the detection range, but in practice, this makes no difference in
the function of the heat detection.
You can place the sensor unit on a shelve for example.
Alternatively, you can hang it from a nail, hook or screw, using the wall mounting opening on
the back.
Use screws and, if necessary, screw anchors that are suitable for the wall character-
istics. If you intend to use the supplied mounting material, note that the rubber ring is
used to maintain the correct distance between the wall surface and screw head so that
you can easily attach the sensor unit to the screw head.
Pay attention when drilling a hole or tightening a screw that no cables or pipes are
damaged.
If the sensor unit is mounted at a greater height (e.g., to make it more difficult for unauthorised
persons to manipulate it), the front must be tilted slightly downward to optimise the detection
range (in this case, the sensor unit may need to be attached in an additional way, e.g., with a
strap or a cable tie).
The range for a detection of a heat change depends on different factors; see chapter
"Function of the PIR sensor in the sensor unit".
Do not point the detection range toward air conditioners or heaters; also do not point
it toward lights or toward the sun. Doing so can cause false triggers.
Due to the operating principle applied, it is not possible to detect a heat change
through glass.
b) Signalling unit
The charging station can be set up on a stable and a horizontal surface.
Alternatively, you can hang it from a nail, hook or screw, using the wall mounting opening on
the back.
Use screws and, if necessary, screw anchors that are suitable for the wall character-
istics. If you intend to use the supplied mounting material, note that the rubber ring
is used to maintain the correct distance between the wall surface and screw head so
that you can easily attach the sensor unit to the screw head.
Pay attention when drilling a hole or tightening a screw that no cables or pipes are
damaged.
Operating the sensor unit
The sensor unit is ready to use within seconds of the insertion of the batteries. If a change in
heat within the area is detected, it will send a radio signal to the signalling unit.
The red LED below the PIR sensor will flash briefly when the heat change is detected
in the detection area.
The sensor unit functions independently of the surrounding brightness.
Operating the signalling unit
• Switch the signalling unit on (switch position "ON") or off (switch position "OFF") using the
sliding switch on the side.
• If the signalling unit is on, you can select one of the 5 audio tunes via the " " and one of 4
volume settings via the "
" button.
• When the sensor unit has detected a heat change in the detection range, it sends a wireless
signal to the signalling unit. If this unit is switched on, it emits an audio tune and the two LEDs
on the front also flash.
The alarm duration (audio signal + LED flashing) is 45 seconds.
Range
The transmission range of the wireless signals between sensor unit and signalling unit is up to
120 m under optimum conditions.
This value, however, is the so-called "open space range" (the range when the trans-
mitter and receiver are visible to each other, without interfering influences).
In practice, however, there are walls, ceilings, etc. between the transmitter and receiver, thus
the range is reduced accordingly.
Due to the different influences on the radio transmission, no specific range can be guaranteed.
However, trouble-free operation is usually possible in a single family house.
Sometimes the range can be considerably reduced due to:
• Walls, reinforced concrete floors, drywall walls with metal frame construction
• Coated/metallised insulated glass
• Proximity to metallic & conductive objects (e.g., heating elements)
• Proximity to human bodies
• Other devices on the same frequency (e.g., wireless headphones, wireless speakers)
• Proximity to electric motors/appliances, transformers, power supplies, computers
Maintenance and cleaning
• Apart from the occasional battery change, the product is maintenance-free for you.
• To clean the product, a clean, dry and soft cloth is sufficient.
• Dust can be easily removed using a clean, soft and long-bristled brush and a vacuum cleaner.
Do not use abrasive cleaning agents, cleaning alcohol or other chemical solutions since these
could damage the housing or even impair operation.
Disposal
a) General
The product must not be disposed of in household waste!
Dispose of the product at the end of its service life according to the current statutory
requirements.
Remove the batteries that may be inserted and dispose of them separately from the
product.
b) Batteries and rechargeable batteries
As the end user, you are required by law (Battery Ordinance) to return all used batteries/
rechargeable batteries; disposal of them in the household waste is prohibited!
Batteries/rechargeable batteries containing hazardous substances are labelled with
these symbols to indicate that the disposal of them in the household waste is forbid-
den.
The symbols of the critical heavy metals are: Cd=Cadmium, Hg=Mercury, Pb=Lead
(name written on the battery/rechargeable battery, e.g., under the rubbish bin symbol
on the left).
You can return your used batteries/rechargeable batteries free of charge at the official collection
points of your community, in our stores, or at places where batteries or rechargeable batteries
are sold!
You thereby fulfil your statutory obligations and contribute to the protection of the environment.
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