What sensors detect intruders?

Types of Home Security Sensors and How They Detect Intruders

6 Types of Home Security Sensors and How They Detect Intruders

With over 800,000 homes burglarized each year, finding ways to keep your family safe has become a top priority. Yet with all the options on the market, shopping for a home security system can be overwhelming.

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Don't procrastinate keeping your home secure because you don't know what to choose. By knowing how each security sensor works, you can better pick the system that works best for you.

To help keep your family safe, let’s look at 6 types of home security sensors and how they work.

1. Glass Break Detectors

If an intruder thinks they can gain entry into your home by breaking glass, make them think again.

Glass break detectors pick up on bands of frequencies and sounds. When glass breaks, these sensors know the type of frequency and noise breaking glass will make, setting off the alarm.

2. Magnetic Switches

Magnetic switches protect common entry points into your home: doors and windows. The alarm sounds when either gets opened by an intruder.

It works by having one component attached to the window or door and another component attached to the frame. The components sit side by side. When the door or window opens, the component separates, and the alarm goes off.

3. Passive Infrared Motion Detectors

One of the popular types of security sensors is passive infrared (PIR) motion detectors. They’re practical, affordable, and don’t generate or radiate their own energy.

PIR sensors pick up on ambient temperature changes, such as body heat. Spikes of temperature changes will set off the alarm. This also means your pets can trigger the alarm.

4. Ultrasonic Motion Detectors

Ultrasonic motion detectors are one of the most sensitive sensors available. They use echolocation to detect motion, much like the sensors bats use to "see."

Because of their sensitivity, they’re prone to false alarms. They can also irritate your pet’s ears since animals may be able to hear the sound waves emitted.

However, they’re great for areas that have a lot of obstructions since ultrasonic sensors don’t have dead zones.

5. Microwave Motion Detectors

The use of electromagnetic waves makes microwave motion detectors another popular home security sensor. Any motion in the detection zone will set off the alarm.

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It has a long detection range and can sense motion around corners or through walls. However, these sensors can’t pass through metal, which creates dead zones behind any metal object.

It’s also prone to false alarms since animals and large insects are able to trigger the sensor.

6. Tomographic Motion Detector

One of the new forms of security sensors is tomographic motion detectors. It uses radio waves to detect motion.

Nodes placed around the area will create a mesh of radio waves that communicate with each other. Any motion that passes through this mesh will trigger an alarm.

Detection nodes are easily hidden out of view and will pass through walls and obstructions.

Keep Your Home Safe with Security Sensors

Keep your home a place you always feel safe in. By knowing what security sensors you have to choose from, you can create a system that’s perfect for your family.

Ready to make your home secure? Contact us today for a free estimate!

Buried Sensors - Covert sensors for Intrusion Detection

What Are Buried Sensors?

Buried sensors detect and locate the movement of people and vehicles as they approach or cross the perimeter. Completely covert, buried intrusion detection sensors are invisible to intruders and maintain site aesthetics. Buried sensors can be fiber optic or cable-based.

What are Buried Fiber Optic Sensors?

When an intruder moves across the ground above a buried fiber optic sensor cable, whether walking, running, crawling, or driving, characteristic vibrations are created. The system distinguishes these from background vibrations and declares an alarm when the detection criteria are met. Fiber optic sensors may also be used for pipeline Third Party Interference (TPI) detection and data conduit protection.

Why Buried Sensors?

Being invisible, buried sensors offer the lowest Vulnerability to defeat (Vd) of any outdoor intrusion detection sensors. Senstar buried sensors can pinpoint the exact location of an intrusion and even detect simultaneous intrusions distributed around the perimeter.

What are Buried RF Cable Sensors?

Consisting of a pair of buried cables, the sensor generates an invisible above-ground radio frequency (RF) electromagnetic detection field. When an intruder enters the field, an alarm is generated. Operation is not affected by vegetation (including grass, shrubs, and trees) and these sensors are insensitive to wind, rain, snow, hail, sandstorms, fog, extreme temperatures, seismic vibration, acoustics, magnetic effects, and blowing debris. They can also be calibrated to reject animal detection.

Similar Terms

fiber optic linear ground detection system (LGDS), ported ("leaky") coaxial cable

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