A frequently cited downside of megapixel cameras is their cost. Even a 'cheap' megapixel network camera is $250 or more (compare that to cheap SD cameras which can be under $100 or analog cameras that can be under $50).
Recently, we were scanning online for USB cameras and were impressed to see how inexpensive even HD webcameras have become - less than $50 for a 720p HD USB camera. This piqued our curiosity and led us to buy a number of USB cameras from Amazon.
While our tests show that application is limited to small scale applications, we were impressed at the video quality and the relative inexpensiveness of using HD USB cameras for limited surveillance solutions.
In order to operate, alarm panels require the high voltages found in electrical outlets be converted to the low voltages they run on. In this...
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