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2. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera.

3. Avigilon - Wikipedia

   en.wikipedia.org/wiki/Avigilon

   Avigilon Corporation was founded in 2004 by Alexander Fernandes in Vancouver, British Columbia, Canada. Avigilon announced the first high-definition surveillance system in 2006 and began selling products in 2007. Avigilon has expanded its offerings to include a broad range of high-definition cameras and devices suited for various environments.

4. Halifax Gibbet - Wikipedia

   en.wikipedia.org/wiki/Halifax_Gibbet

   The device, which seems to have been unique in England, [19] consisted of two 15-foot (4.6 m) tall parallel beams of wood joined at the top by a transverse beam. Running in grooves within the beams was a square wooden block 4 feet 6 inches (1.37 m) in length, into the bottom of which was fitted an axe head weighing 7 pounds 12 ounces (3.5 kg ...

5. Guillotine - Wikipedia

   en.wikipedia.org/wiki/Guillotine

   The guillotine used in Luxembourg between 1789 and 1821. A guillotine (/ ˈ ɡ ɪ l ə t iː n / GHIL-ə-teen / ˌ ɡ ɪ l ə ˈ t iː n / GHIL-ə-TEEN / ˈ ɡ i j ə t i n / GHEE-yə-teen) [1] is an apparatus designed for efficiently carrying out executions by beheading. The device consists of a tall, upright frame with a weighted and angled ...

6. Wyze Labs - Wikipedia

   en.wikipedia.org/wiki/Wyze_Labs

   Wyze Labs, Inc. (formerly Wyzecam), also known as Wyze, is an American technology company based in Seattle, Washington, that specializes in smart home products and wireless cameras. It is a start-up of former Amazon employees. [1] [2]

7. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   Previous generations of wireless security cameras relied on analogue technology; modern wireless cameras use digital technology with usually more secure and interference-free signals. [167] Wireless mesh networks have been used for connection with the other radios in the same group. [ 168 ]