Are you ever wondering how any unusual movement from either inside or outside is being detected to trigger the alarm? Well, a motion detector car alarm is the key to this smart vehicle security system.
This motion detector, adds an extra layer of security to monitor the surroundings and trigger an alarm when any unusual motion is detected.
In this article, we will give you a detailed breakdown of how they work, what features this type of car alarm offers, how to use it, and some usage hacks of a motion detector car alarm.
How Motion Detector Car Alarm Works?
Sensor Activation: Whenever you arm the alarm, the motion detector create an invisible barrier around and inside your car. It’s a combination of microwave and ultrasonic technology that makes the sensors trigger if any disturbances occur.
Ultrasonic sensors: These sensors create a line of sound waves bouncing off the surface inside the car. If there’s any break in the patterns of sound waves, mostly due to any motion along the line, the alarm is triggered.
Microwave Sensors: These sensors create an invisible protective dome around the car by emitting radio waves within some specific range. If anything disrupts the signal, the alarm will be activated.
Alarm Triggering: The system issues a warning chirp once motion is detected to a state of full alarm. Most alarms are designed to trigger when motion is inside the car for example if someone tries to break the window even if an object or person gets too close to the microwave perimeter.
Some advanced model of car alarms also includes a tilt sensor which is useful to trigger the alarm if the car is being lifted or towed without authorization.
Alarm Sound: For any reason, if the alarm is triggered, the system emits a loud, attention-grabbing sound to scare off intruders. Some alarms flash the car’s lights as well to attract more specific attention.
In addition, if the system is connected through a smartphone app to your mobile, it will send an instant alert that allows you to monitor the situation remotely.
We have covered car alarms with cameras in-depth here which you can check out to learn more about how to avail further advantages of using a car alarm.
Disarming the System: When the alarm is activated, you have to use the authenticated key fob or remote control to disarm the alarm. In most cases, smartphone apps allow to deactivation of the alarm from a distance as well if any false alarm is triggered.
Common Features of a Motion Detector Car Alarm
Ultrasonic and Microwave Sensors: Ultrasonic sensors use high-frequency waves to detect motion within the car. For example, if someone enters the car’s cabin or moves inside, the alarm is triggered.
On the other hand, microwave sensors create a perimeter by emitting microwave signals to detect movement around the exterior of your car. It is so powerful that even if your car is like an open-top (without a roof), it can detect external movements as well.
Interior and Exterior Monitoring: Motion detector can detect internal movement like a break and external threats like someone tampering with locks as well.
Perimeter Protection: Microwave sensors create a protective field around the car like an invisible range of shields. If an intruder gets too close, you will be notified before they even touch your car.
Shock Sensors: A shock sensor, is one type of sensor used to detect motion like hits or shakes in the car which causes the alarm to be triggered. However, this feature is useful to detect break-ins or vandalism attempts as well.
Some alarm systems feature dual-zone sensors. One zone is used to monitor the proximity mostly for minor threats and the other one is used for direct or serious impacts.
We have covered car alarm with shock sensor in-depth here which you can check out to learn more about how to avail further advantages of using a shock sensor car alarm.
Adjustable Sensitivity: Adjustable sensitivity is a tremendous feature to customize sensitivity which is useful to reduce false alarms. For instance, minor movements like passing an animal or wind would still respond as significant threats whether you can adjust the settings from high to low, to avoid the alarm triggering due to minor movements.
Pre-Warning Alarm: To scare off potential intruders, motion detector car alarm systems feature a “Pre-Warning System”. When a motion is detected nearby, the alarm emits a warning or chirp sound before the full alarm is triggered. This is a useful feature most importantly for high-traffic areas where false alarms might be frequent.
Silent Alerts: A silent notification is sent through the mobile app connected with the motion detector car alarm system instead of setting off a loud alarm. This way you will be notified discreetly which allows you to take action without alerting the intruder. Although this feature is not universal, some advanced systems have recently introduced this useful feature.
Remote Control and Smartphone App: Like all others, modern systems come with remote arming and disarming features that allow you to control the alarm through a key fob or smartphone app. If the alarm is triggered, you will receive an instant notification on your smartphone, so you can check the status of your vehicle in real time.
Multiple Alarm Modes: In motion detector car alarm systems, there are multiple modes available which are as follows:
- Full Alarm Mode: Triggered by motion or impact.
- Silent Mode: Sends notifications without sounding the alarm.
- Valet Mode: Disable the motion detector when you need to park in busy areas or hand over the vehicle to any other person.
Benefits of Motion Detector Car Alarm
Proactive Protection: The most useful feature of the motion detector car alarm is its proactiveness which provides early protection by sending an alert to you when someone is near your vehicle or trying to tamper with it. Before any damage or break-in attempts, this proactive protection deters thieves to keep your car secure.
Reduced False Alarms: You can fine-tune your sensitivity by adjusting from low to high which reduces the number of false alarms caused by minor movements. For instance, you can adjust your sensitivity settings to low in busy areas like parking lots or residential streets.
Cost-Effective Security: Motion detector car alarm systems are often more affordable compared to more complex security systems like car alarms with camera or GPS tracking which mostly require monthly subscription fees, while still offering a robust level of security protection for your car.
Easy Integration with Other Systems: The best thing about a motion detector car alarm system is, that it can be paired with other security devices like dash cams or GPS trackers. If you want to build a complete vehicle protection suite, it’s doable, you just need to consult with a professional expert.
Versatile Application: Motion detector car alarm systems provide both interior and exterior protection for your car. No matter whether you’re concerned about break-ins, vandalism, or theft, motion detectors provide all-around protection.
Motion Detector Car Alarm Usage Hacks & Tips
Optimize Sensitivity Settings: To prevent false alarms for minor disturbances like wind, passing animals, or small objects, you can adjust the sensitivity of the motion detector – from low to high. We recommend that, in high-traffic areas, you should lower the sensitivity slightly to avoid constant false alarms. For isolated or quitter locations, you should increase the sensitivity for maximum protection.
Silent Mode for Low-Key Protection: When you don’t want to draw attention but still want to monitor your car’s safety such as in a crowded parking lot, you should use the “Silent-alert Feature”. This is a useful feature to receive notifications of motion without sounding the full alarm.
Pre-Warning Zone Customization: If your system allows “Dual-zone Protection”, configure the outer zone to give a warning chirp when someone is near your car and configure the inner zone only if the intruder crosses into the inner zone. These configurations reduce false alarm triggers and still keep your car secure and protected.
Battery Backup: Make sure the motion detector car alarm has a backup battery or low power mode so it can operate even if the main battery of the car is disconnected or drained for any reason. This is a preventive hack for thieves to disable the alarm system by cutting the car’s power.
Combine with GPS Tracking:
To make sure enhanced security, you should pair your motion detector alarm with a “GPS Tracker”. If your car is stolen or moved, you can track its real-time location while the alarm continues to provide audio and visual deterrents.
Remote Start & Kill Switch:
Some motion detector car alarm systems come with a remote engine kill switch which allows you to disable the engine if the car is tampered with. This is a preventive feature of your car from being driven away even if an intruder manages to get inside your car.
Which one you should buy?
Well, at this point, you must know almost everything about a motion detector car alarm. We’ve highlighted the common features of this type of alarm system, but selecting the right one is subjective. If you want all the features, it might cost more.
However, our comprehensive guide, Best Car Alarms Systems, covers everything you need to know. Before making any buying decision, we recommend checking it out to find the best alarm system for your car based on the features you want and your budget.
If you still have any car model specific questions roaming around your mind, please consider making a help post in our Discord Channel where our expert team will try to come up with the best possible solution for you.