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These motion-activated lights are priced to move — on sale for $12 for a four-pack!
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
Normally, light from the light source shoots straight across and misses the sensor. When smoke enters the chamber, it scatters the light, which then hits the sensor and triggers the alarm. Photoelectric smoke detectors typically respond faster to a fire in its early, smoldering stage, before the source of the fire bursts into flames.
A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.
The outdoor weather siren system in St. Joseph County is in need of new electronics and an upgrade, and officials hope the work is done by early fall.
Beginning March 4, a date planned to mark the beginning of the 2024 testing schedule, the outdoor warning sirens will include a solid steady siren that will sound for one minute (during an actual ...