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February 23, 2023
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Motion Detectors vs. Window and Door Sensors

Banks and museums were probably the first thing that came to mind when you hear about motion detectors and window sensors. After all, the valuable contents of these buildings make them a target for thieves. 

However, this doesn’t mean your home is exempt from peril. Every single property can benefit from installing these devices because of the added safety that comes with protecting your home’s entry points. Not only does it prevent your possessions from being stolen, but it also keeps your family safe

Home security systems come with a wide range of anti-theft hardware, including motion detectors and window and door sensors that detect suspicious activity.  

Which security feature provides the most value? Keep reading to find out.

What Is a Motion Detector?

A motion detector, also called a motion sensor, is a security device used to detect movement within a targeted area. Motion sensors make it difficult for intruders to enter a room without being detected. They can also be installed outside a building, usually along perimeter fencing or along external walls, however, this installation method isn’t as common due to the probability of false alarms.

Motion sensors are also used in contact-free devices like automatic doors, hands-free faucets, and ATM monitors. They are also used in smart lighting to help reduce electricity consumption.

a homeowner installing a motion sensor on his wall

Types of Motion Sensors

Security motion sensors use a variety of technology. Passive InfraRed sensor monitor and detect body heat in a specified area. Other types of motion detectors include microwave sensors, area reflective sensors, vibration motion sensors, and dual technology sensors.

How to Maximize Security Motion Sensors

If you opt to install alarm motion sensors, make sure to place them in a carefully selected area that maximizes their range. Corners are ideal spots for these devices, especially high up on a wall. Position your motion detectors so that they also cover entrances and exits.

However, motion detectors are not foolproof. It’s still possible for a thief to evade a passive sensor, especially if it is blocked by furniture, a pillar, or a low-hanging beam. 

Since these devices are quite sensitive, they are prone to false positives. Pets, wildlife, even a wind-tossed branch might trigger motion sensors.

You only need one motion detector per room or hallway, so the overall cost is more affordable compared to window and door sensors. Remember to include maintenance and replacement parts in your budget.

Pros and Cons of Motion Detectors

Can detect intruders inside and outside your homeA high number of false alarms if used outdoors  
Easy to install in nearly any type of home or building Batteries need to be replaced regularly depending on the hardware*
Automatically sends an alert if motion is detected Can be difficult to operate in a house with a lot of occupants 
Wireless versions are convenient to move aroundMight be triggered by pets or wildlife without the use of pet-friendly motion sensors
*thinkpro hardware lasts five to seven years

What Are Window and Door Sensors?

Window and door sensors can detect movement only at a specific point of entry. Though the sensor can only monitor the opening and closing of doors and windows, your chances of catching an intruder are higher since they are spotted before they can even get inside your house.

Most security systems include window and door sensors, and for good reason. These entry sensors ensure that your home is safe even when it is unoccupied, say while you’re on vacation or during office hours. 

How Do They Work?

These sensors are made up of two connected parts: a contact, which is usually a small magnet, and a component that triggers the alarm. One part is placed on the window or door frame, while the other is placed on the window sash or door. Once these parts are separated, an alarm goes off. This usually happens if the window or door is being opened or tampered with. 

To amp up your window and door security, you can opt for glassbreak detectors in addition to sensors. These systems can set off an alarm when they detect the sound of broken glass from a windowpane. Other window and door sensors are triggered by movement.

Having these security sensors will create a solid security perimeter, especially if used with other security devices. However, these sensors can get quite expensive since you need to install them on all of your windows and doors. 

Types of Window and Door Sensors

These devices can be programmed to instantly trigger an alarm if someone attempts to open a window or door. In other models, the alarm is delayed to give the homeowner time to disarm the system in case of a false positive. 

You can also choose between recessed and surface-mounted sensors. Keep in mind that a surface-mounted sensor is visible, which would let a potential intruder know that your home has a security system in place. 

Installing windows and door sensors is easy since they usually come with an adhesive strip. However, recessed sensors require drilling into the frame. While they won’t affect your home’s interior design, they may compromise your window’s insulation.

Pros and Cons of Windows and Door Sensors

Can immediately detect if someone breaks in through a window A possibility of false alarms if the window is facing a busy street
Easy to installSurface mounted sensors are noticeable
Can be used in rental apartmentsPrice increases in houses with multiple external doors and windows

Which Security Sensor Is Best for Your Home?

On their own, these sensors have some blind spots. That’s why it’s always better to integrate both devices into your alarm system rather than choose one over the other.

Together, they create a reliable protective perimeter for your home. For instance, you can set up a motion trap zone in the critical areas of your home. For added security, install a window or door sensor where you suspect potential intruders may attempt to enter.

Think Protection When It Comes to Home Security

You don’t have to choose between an alarm motion sensor or window and door sensors. Get the best of both worlds with Think Protection.

Think Protection’s wide range of home security solutions allows you to maximize both security motion sensors and entry sensors. Get 24/7 monitoring without breaking the bank. Our pay-as-you-go payment model lets you purchase security equipment at any time. The best part? You aren’t locked into a long-term contract.

Contact our team today at (855) 76-THINK or 1-855-76-84465. Protect your home today.