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Vehicle alarm ultrasonic sensor
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Home Vehicle Accessories Vehicle alarm ultrasonic sensor
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Vehicle alarm ultrasonic sensor

$57.80

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Description

Vehicle alarm ultrasonic sensor

A vehicle alarm ultrasonic sensor is a device that uses sound waves to detect movement inside a car when the alarm system is armed. It works by emitting ultrasonic sound waves and monitoring for changes in the echoes, which indicate movement within the vehicle’s interior. If movement is detected, the sensor triggers the car alarm.

Ultrasonic Sensors For Detecting Movement Inside A Hardtop Vehicle - UD6

Here’s a more detailed explanation:

  • How it works:
    The ultrasonic sensor sends out inaudible, high-frequency sound waves that fill the car’s interior. 

  • Detecting movement:
    When someone or something moves inside the vehicle, the sound waves bounce back to the sensor differently, indicating a disturbance in the air pressure or a change in the environment. 

  • Triggering the alarm:
    This change in the reflected sound waves signals the sensor to activate the car alarm system, alerting the owner and deterring potential intruders. 

  • Additional security:
    Ultrasonic sensors are often used as a secondary layer of security, complementing other alarm systems like door and window sensors. 

  • Considerations:
    Because they rely on air pressure, ultrasonic sensors are not recommended for vehicles with open tops or convertibles. 
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