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Guardian Alarm is an American security company based in Southfield, Michigan. Founded in 1930, Guardian Alarm is the largest independently owned security company in the Midwest and continues to be ranked in the top 20 in the United States. The company has over 500 employees in various cities across the United States.
Closed-circuit television (CCTV), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point , point-to-multipoint (P2MP), or ...
Some forecasts project the home security market as a whole will be worth $47 billion by 2020, [12] with the DIY home security market worth $1.5 billion. [13] While the market for home security is expanding, especially with cable TV and Internet service providers introducing their own security and home automation products, it is a fragmented ...
Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio.
Honeywell acquired Pittway/ADI in 2000 to expand its footprint in home and building control. [8] In 2006, Honeywell purchased Gardiner Groupe Europe, a distributor of closed-circuit TV (CCTV) systems, fire alarm, intrusion alarm, access control, public address, and integrated systems to bolster ADI's presence in Europe. [9]
Because network cameras are embedded devices, and do not need to output an analogue signal, resolutions higher than closed-circuit television 'CCTV' analogue cameras are possible. A typical analogue CCTV camera has a PAL (768x576 pixels ) or NTSC (720x480 pixels), whereas network cameras may have VGA (640x480 pixels), SVGA (800x600 pixels) or ...
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