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2. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   CCTV monitoring at the Central Police Control Station, Munich, Germany, in 1973 Desk in one of the regional control-rooms of the National Police in the Netherlands in 2017 CCTV control-room monitor wall for 176 open-street cameras in 2017. An early mechanical CCTV system was developed in June 1927 by Russian physicist Leon Theremin. [9]

3. Monitronics - Wikipedia

   en.wikipedia.org/wiki/Monitronics

   Monitronics International was founded in Dallas in 1994 to provide alarm monitoring services to U.S. customers and businesses, as well as financing, technical training and product solutions [clarification needed] to dealers within the industry. [3] It was funded mostly by ABRY Partners until it was sold to Ascent Media in December 2010. [4]

4. craigslist - Wikipedia

   en.wikipedia.org/wiki/Craigslist

   This is an accepted version of this page This is the latest accepted revision, reviewed on 12 February 2025. Classified advertisements website Craigslist Inc. Logo used since 1995 Screenshot of the main page on January 26, 2008 Type of business Private Type of site Classifieds, forums Available in English, French, German, Dutch, Spanish, Italian, Portuguese Founded 1995 ; 30 years ago (1995 ...

5. Knight Security Systems - Wikipedia

   en.wikipedia.org/wiki/Knight_security_systems

   The company's security solutions include access control, video surveillance, and intrusion as well as fire detection systems. [ 1 ] In 2009, Knight Security secured a $12.5 million contract with Texas Department of Aging and Disability Services (DADS) to install over 3,200 high-definition video surveillance camera systems in 335 buildings at 12 ...

6. Closed-circuit television camera - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television...

   These cameras do not require a video capture card because they work using a digital signal which can be saved directly to a computer. The signal is compressed 5:1, but DVD quality can be achieved with more compression (MPEG-2 is standard for DVD-video, and has a higher compression ratio than 5:1, with a slightly lower video quality than 5:1 at best, and is adjustable for the amount of space to ...

7. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Wireless security cameras function best when there is a clear line of sight between the camera(s) and the receiver. If digital wireless cameras are outdoors and have a clear line of sight, they typically have a range between 250 and 450 feet.