Motion Activated Security Cameras & Deterrents

Motion sensors are an integral part of almost every security system. Whether you or a professional monitoring company monitors the system, there are several ways motion detectors can be used to keep your home safe. Motion-activated cameras, lights, and alarms are some of the most popular applications of motion sensors. These products can deter and catch criminals in action.

Types of Motion Sensors

There are several different types of sensors that are used in security cameras, floodlights, and alarms. Some of the most common sensor types include:

Passive Infrared Sensors:

PIR’s use infrared technology to detect heat energy moving through the space. Active infrared sensors use an LED light and a receiver to emit and detect infrared radiation.


Microwave sensors use electromagnetic radiation to create waves that are returned to the sensor. If movement is detected, the waves will return altered, triggering the alarm, camera, or floodlight.

Dual Technology:

Today, dual technology sensors are the most popular because they combine PIR and Microwave technology to deliver the most advanced solution. Dual technology sensors are less likely to experience a false alarm.

Using Motion Sensors to Monitor

Motion-activated security cameras are a standard device designed to only record video when motion is detected. Once movement is detected, the system will send alerts to the homeowner or the monitoring company. Systems without motion detection record video 24/7 and give you hours of uneventful footage to sort through.

Uses for motion-activated home security systems go beyond catching criminals breaking into your home. Many consumers use motion cameras to make sure their kids get home from school safely. Homeowners with a larger property might use motion sensor cameras along the property’s perimeter, so they receive a notification if they are triggered.

Motion security cameras are standard in both indoor and outdoor security applications. Here are some of the most common locations for these cameras:


Get notified when someone pulls into your driveway so you can see who is approaching your home. If you park in the driveway, this is a great way to keep an eye on your car at night! Tip: Make sure you position the camera to avoid the road or sidewalk to reduce the amount of unnecessary detection.

Exterior doors (Inside):

Positioning a motion-activated camera on doors that lead outside is a great way to monitor who is entering your home, whether it be the kids getting home from school or an unwanted visitor.

Exterior doors (Outside):

Before the rise of video doorbells and other smart security, installing cameras on a front porch was a common practice that notified the homeowner when someone approached the door. Ring doorbells and smart devices offer many advanced features like two-way audio to dominate this specific application.

Perimeter Video Surveillance:

When you own acres of land, it can be challenging to monitor your entire property. Using motion cams along the perimeter of the property can give you some peace of mind 24/7.


Beyond security applications, individuals with wooded land may use motion-activated tree cams to observe animals and other wildlife that passes through.

Other Features of Motion Activated Cameras

Today, most cams feature HD video at an affordable price. Advanced security products are adding more features designed to identify suspicious activity and enhance video surveillance. Below are some advanced features to look for:

Issues with Motion Detection

While motion detection is a great feature, you need to be aware of a couple of common issues. Most of these issues can be avoided with a proper installation.

False Alerts and Over Sensitivity:

If your cam is detecting insects flying by, dust particles, or the shadows of passing cars, you are probably tired of receiving endless push notifications. This can be avoided by reducing the sensitivity level on your device or moving your cam, so the angle of view is away from high traffic areas like roads and sidewalks.

Not Detecting Motion and Under Sensitivity:

While a false alarm might seem to be an annoyance, it’s better than the sensor not detecting movement at all. There are several reasons why your camera or other sensor technology fails to detect movement. If your sensitivity levels are too low or the camera is positioned towards glass windows, the sensors may have trouble seeing movement.

Using Motion Sensors to Deter

While motion-activated cameras are an excellent solution for home security monitoring, they don’t always work to deter criminal activity from occurring. Movement sensors are used in many security products developed to deter and “scare-off” prospective robbers. Security sirens and ultra-bright floodlights are examples of products created to deter criminals.

A Security siren uses motion sensors to detect movement when a security system is armed. Once the alarm is tripped, a loud siren is triggered. Most criminals will flee instantly to avoid confrontation with the homeowner or law enforcement. These can be used alongside cameras for the best results. In fact, newer systems feature an all-in-one product.

A motion-activated floodlight is another product that uses movement sensors to deter criminals. A floodlight can flood the space with light and are commonly used over driveways, backyards, patios, or decks. Beyond security uses, floodlights and other motion sensor lights are helpful safety features. Lights that turn on when you approach your front steps or driveway will help you get into your home safely.


When it comes to protecting your home, motion sensors play a prominent role in monitoring your space and deterring criminals. Security cameras that detect movement can be used in several locations, including driveways and entrances to your home. Lights and alarms also use sensors to detect and deter criminals. Update your system today with the latest motion sensor technology!

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