6 Different Types of Sensors That Home Alarm Systems Use to Detect an Intruder
There are many factors to consider when you are shopping for a home alarm system. The alarm type is probably on top of most homeowners’ list. However, deciding on what type of sensors to install is also very important because they are the most vital component of your home alarm system. An efficient alarm system sensor will detect any intrusions and save you from unfortunate circumstances.
Following are 6 different types of sensors that home alarm systems use to detect an intruder:
1. Passive Infrared Motion Detectors
Also known as PIR sensors, these are the most common type of sensors homeowners use because they are practical and affordable. The term passive means that these detectors operate without any need to radiate and generate their own energy. PIR sensors can efficiently detect changes in the ambient temperature as well as body heat. If these sensors detect a temperature spike due to the presence of an intruder or foreign object, the alarm is set off. A thing to note is that infrared energy cannot pass through glass, so the alarm won’t trigger due to the presence of people or animals outside.
2. Ultrasonic Detectors
Ultrasonic detectors use high-frequency sound waves to detect any kind of movement within a limited space. They transmit frequencies between 25 kHz and 75 kHz, which are inaudible to human ears. These frequencies are bounced off the walls, ceiling, as well as furniture in a protected room. And when there is any sudden change in the stabilized frequency, the alarm is triggered. Any moving object can change the frequency of the surrounding sound waves in the protected space, so these sensors will not discriminate between intruders and passersby.
3. Microwave Detectors
Microwave detectors work in the same manner as ultrasonic detectors. However, they use high frequency radio waves instead of sound waves. The advantage of using microwave detectors is that radio waves can go through walls, so they provide relatively more coverage as compared to ultrasonic waves.
4. Magnetic Switches
Magnetic switches are typically used for protecting doors and windows. Their ease of use, durability, and affordability makes them a popular choice. They consist of two separate parts i.e. the switch and the magnet, and homeowners can easily install them themselves. The switch creates an electrical circuit with the magnet when closed because it contains a spring. If a window or door is opened the circuit breaks and the alarm is triggered.
5. Photoelectric Beams
Photoelectric beams utilize infrared light beams in order to detect the presence of an intruder. These infrared light beams are usually stacked in rows of two or more. The home alarm system goes off if anyone obstructs a beam.
6. Glass Break Detectors
When a glass breaks, different bands of frequencies are generated including ultrasonic waves that are audible to humans as well as infrasonic that humans cannot hear. These sensors are installed next to glass panes, and the alarm sets off instantly when the glass breaks.
If you have a home in The Coachella Valley and are concerned about the overall security of your property, see our page for special offers on a new alarm system, then contact the professional alarm consultants at Command One Security! We are eager to discuss with you the most effective and economical options we have available for home security today. Call us today at (760) 568-0052!