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2. Driveway alarm - Wikipedia

   en.wikipedia.org/wiki/Driveway_alarm

   Driveway alarms come in both wired and wireless packages. Infrared and rubber hose systems are generally sold as wireless units while magnetic probe systems are equally available as hard wired and wireless systems. Choosing between wireless or wired systems is typically decided by the environment the unit is being installed in.

3. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Driveway alarm systems can be combined with most security and automation systems. They are designed to alert residents to unexpected visitors, intruders, or deliveries arriving at the property. Types of driveway sensors include magnetic and infrared motion sensors. Driveway alarms can be found in both hard-wired and wireless systems.

4. Z-Wave - Wikipedia

   en.wikipedia.org/wiki/Z-Wave

   Z-Wave is a wireless communications protocol used primarily for residential and commercial building automation. It is a mesh network using low-energy radio waves to communicate from device to device, [2] allowing for wireless control of smart home devices, such as smart lights, security systems, thermostats, sensors, smart door locks, and garage door openers.

5. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Analog wireless is the transmission of audio and video signals using radio frequencies. Typically, analog wireless has a transmission range of around 300 feet (91 meters) in open space; walls, doors, and furniture will reduce this range. Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz.

6. Home security - Wikipedia

   en.wikipedia.org/wiki/Home_security

   A control panel is implemented to arm and disarm a home security system. The control panel is the main connection to the alarm company monitoring a home. It typically features a touchpad or buttons to easily maneuver the system, and some newer systems also feature voice control or wireless remotes (key fobs). [5]

7. New panic alarm system saved countless lives during shooting ...

   www.aol.com/news/panic-alarm-system-saved...

   A new panic alarm system that was triggered during Wednesday’s deadly shooting at a Georgia high school likely saved countless lives, authorities and advocates for the technology said.