Ads
related to: magnetic door alarm sensors retail stores near me- Business Security Systems
Compare 2025's 10 Best Services
The Best Business Security 2025
- Affordable Security
Save Big with the Most Affordable
Home Security Packages Today!
- Best Home Security
Compare the Best Home Security
And Choose the Best Company for You
- Best Security Doorbells
Top 10 Home Security Doorbells
Review 2025's 10 Best Services
- Best Alarm Systems
Compare the Best Systems for You
And Protect Your Family and Home
- Homeowners Security
The Top Home Security Options
Designed for Homeowners in US
- Business Security Systems
amazon.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
Electronic article surveillance antennas at an H&M store in Torp shopping mall, Sweden. Electronic article surveillance (EAS) is a type of system used to prevent shoplifting [1] from retail stores, pilferage of books from libraries, or unwanted removal of properties from office buildings. EAS systems typically consist of two components: EAS ...
A simple electromagnetic door holder consists of a strong electromagnet, usually attached to a wall or mounted in a floor pedestal enclosure, next to the door it controls. The mechanism may be mounted near the floor, at the upper corner of the open door, or at any convenient height along the latch edge (away from the hinged edge).
Door and window sensors are also implemented in most home security systems. One part of the system is installed on the door or window itself while the other part is installed on the frame of the door or window. The two part system connects securely when a door or window is closed, creating a security circuit. [5]
Sensors: In a security alarm, some sensors detect intrusions. Sensors' locations are at the perimeter of the protected area, within it, or both. Sensors can detect intruders by different methods. Alerting devices indicate an alarm condition. Most commonly, these are bells, sirens, also and or flashing lights. Alerting devices serve the dual ...
Examples are door and window sensors in burglar alarm systems and tamperproofing methods. Reed switches have been used in laptops to put the laptop into sleep/hibernation mode when the lid is closed. Speed sensors on bicycle wheels frequently use a reed switch to actuate briefly each time a magnet on the wheel passes the sensor.
Get lifestyle news, with the latest style articles, fashion news, recipes, home features, videos and much more for your daily life from AOL.
Ad
related to: magnetic door alarm sensors retail stores near me