It’s important to place these sensors in the correct area because of their sensitivity to heat. If a person or animal passes through the designated area, the sensors will detect the change in temperature and alert you of movement. Area reflective sensors use the reflection of the infrared rays to identify if an object has entered a designated space.Ī Passive Infrared motion sensor (PIR) operates by detecting body heat. Area reflective: This technology uses LED lights that send out infrared rays.Any change in the radio wave pattern triggers the motion detector. Tomographic: This type of motion sensor uses radio waves, and covers larger spaces.If those waves are disrupted by movement, the microwave sensor will be able to detect it and set off an alarm. These types of sensors emit waves that bounce back to the receiver. It emits electromagnetic radiation which detects movement. Microwave: This is used in most home security systems.If there are any changes in the sound wave pattern, it triggers the motion detector.
It works by emitting high-frequency sound waves. Ultrasonic: This is the most commonly used type when it comes to lighting motion detectors.These are the common types of active sensors: Active SensorsĪctive sensors use signals (such as radar waves or sound waves) to detect any changes in an area. Below are the different types of motion sensors that you can choose from for your home. Think about the layout of your home and its general environment before deciding which technology will work best for your security setup.
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There are multiple different technologies to choose from when deciding which motion sensors to install in your home.
