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8 Function of the PIR sensor in the sensor unit
The PIR sensor integrated in the sensor unit responds to temperature changes within the de-
tection 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
Note:
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.
9 Assembly
For the wireless range between sensor unit and signalling unit, see the chapter "Range".
9.1 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 characteristics.
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.
Important:
Pay attention when drilling a hole or tightening a screw that no cables or pipes are dam-
aged.
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).
Note:
– 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.
9.2 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 characteristics.
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.
Important:
Pay attention when drilling a hole or tightening a screw that no cables or pipes are dam-
aged.
10 Operation
10.1 Range
The transmission range of the wireless signals between sensor unit and signalling unit is up to
120 m under optimum conditions.
Note:
This value, however, is the so-called "open space range" (the range when the transmitter
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
10.2 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.
10.3 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.
11 Cleaning and care
Important:
– Do not use aggressive cleaning agents, rubbing alcohol or other chemical solutions.
They damage the housing and can cause the product to malfunction.
– Do not immerse the product in water.
Apart from the occasional battery change, the product is maintenance-free.
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.
12 Disposal
12.1 Product
This symbol must appear on any electrical and electronic equipment placed on the
EU market. This symbol indicates that this device should not be disposed of as
unsorted municipal waste at the end of its service life.
Owners of WEEE shall dispose of it separately from unsorted municipal waste.
Spent batteries and accumulators, which are not enclosed by the WEEE, as well
as lamps that can be removed from the WEEE in a non-destructive manner, must
be removed by end users from the WEEE in a non-destructive manner before it is
handed over to a collection point.
Distributors of electrical and electronic equipment are legally obliged to provide free take-back
of waste. Conrad provides the following return options free of charge (more details on our
website):
in our Conrad offices
at the Conrad collection points
at the collection points of public waste management authorities or the collection points set
up by manufacturers or distributors within the meaning of the ElektroG
End users are responsible for deleting personal data from the WEEE to be disposed of.
It should be noted that different obligations about the return or recycling of WEEE may apply in
countries outside of Germany.
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