Motion sensors are a fundamental component used in alarm systems to detect unauthorized entry. They detect movement inside the building without the door or window being opened, sending a signal to the alarm panel. They are the most commonly used type of sensor in home and business security.
How does a motion sensor work?
The most common type of motion sensor used in alarm systems is the PIR (Passive Infrared) sensor.
PIR sensor:
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It detects changes in ambient temperature.
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It detects infrared energy emitted by the human body.
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It sends a signal to the alarm panel in case of sudden movement.
This allows unauthorized entry to be detected.
In which areas is it used?
Motion sensors typically:
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living room and sitting room
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Office interiors
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Warehouse sections
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corridors
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Cash registers
They are positioned indoors, such as in other locations.
How is it different from a door sensor?
Door sensor:
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It is triggered when a door or window is opened.
The motion sensor, on the other hand:
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It activates when there is physical movement inside.
Therefore, the motion sensor is the second layer of security.
Will a blind spot form?
If the placement is incorrect:
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Areas outside the sensor's field of view may occur.
Therefore, the sensor:
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In the corner of the room
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Facing the entrance
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2–2.5 meters high
must be assembled.
Can pets trigger the alarm?
Standard sensors can detect small movements.
However, pet-friendly sensors:
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It filters out movements below a certain weight.
This feature is important for homes with pets.
Can it be used outdoors?
Standard PIR sensors are generally for indoor use.
For outdoor use:
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Dual technology (PIR + microwave) sensors
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Weather-resistant models
should be preferred.
Why do false alarms occur?
False alarms usually:
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air conditioner airflow
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direct sunlight
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Incorrect mounting height
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Low-quality sensor
It occurs due to...
Professional installation reduces this risk.
How many meters can the motion sensor detect?
It varies depending on the model:
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Detection range between 8–12 meters.
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90°–120° viewing angle
can offer.
The number of sensors should be determined according to the size of the area.
Does it work with GSM and mobile notifications?
Yes.
When the motion sensor is triggered:
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The siren sounds.
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You will receive a notification on the mobile app.
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SMS messages can be sent via GSM.
This structure allows for immediate intervention.
Why is it important for workplaces?
Motion sensors in workplaces:
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It detects internal entries after working hours.
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It protects the cash register area.
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It enhances warehouse security.
It plays a crucial role, especially if entry is gained without breaking the door.
