Most motion sensors work using either passive infrared (PIR) to detect body heat or ultrasonic waves to detect movement. When a change is detected, the sensor triggers the connected device.
Where are motion sensors commonly used?
Motion sensors are frequently used in security systems, outdoor lighting, home automation, and other applications to enhance safety and convenience.
Can I use a motion sensor with my existing lights?
Yes, many motion sensors are designed to be added to existing lighting setups, turning traditional lights into motion-activated systems.
How far can motion sensors detect movement?
The range can vary based on the model and type. Some sensors can detect motion from as far away as 15-30 feet or more.
How long do motion sensors typically last?
The lifespan of a motion sensor largely depends on its usage and power source. Battery-powered units might require periodic battery replacements, while hardwired units tend to have longer operational lifespans.