Editorial Reviews:
Amazon.com Product Description
The Pro Video CVC-235CS B/W In-ceiling Speaker Camera is a totally-hidden, reliable and economical solution for most any remote monitoring needs. Designed to provide a high resolution in a hidden-in-plain-sight fashion, the Pro Video CVC-235CS features a fully operational 12-inch round ceiling speaker and works very well in low-light conditions. Intended for indoor use only, this unit matches standard 8-inch dual-cone commercial sound speakers for concealed video surveillance and is perfectly suited for use in businesses or schools containing PA-style (public address) audio systems. This speaker camera utilizes a 0.33-inch black-and-white CCD (charge-coupled device) sensor with a 3.6-millimeter wide-angle pinhole lens, and provides 512-by-492 effective picture elements. The CVC-235CS has a high resolution of 420 horizontal TVL (TV lines), is very sensitive to light with a minimum illumination of 0.5 Lux, and achieves a S/N (signal-to-noise) ratio of 46 dB or better. The Pro Video CVC-235CS uses the EIA (Electronics Industries Association) scanning system, and includes a standard RCA video output with a BNC (Bayonet Neill-Concelman) adapter. This unit runs on 12-volts DC power, and can operate in temperatures ranging from 14 to 122 degrees Fahrenheit. The CVC-235CS comes complete with a built-in automatic electronic shutter with speeds ranging from 1/50 to 1/100,000 of a second, and a white metal speaker-grille housing. Technical Features: - S/N ratio: better than 46 dB
- Sensitivity: minimum illumination of 0.5 Lux
- Effective pixels: 512 by 492 pixels
- Horizontal resolution: 420 TVL
- Operating temperatures: 14 to 122 degrees Fahrenheit
- Dimensions: 12 inches in diameter, 8-inch dual-cone speaker
The Pro Video CVC-235CS camera provides you with a high-quality B/W picture from a virtually invisible pinhole lens, and deserves serious consideration as a completely concealed addition to your security surveillance system. Users should note that the CCD sensor may become permanently damaged if exposed to long hours of direct sunlight or halogen light, so the camera should not be mounted or pointed directly at the sun or other bright-light sources. About Surveillance Camera Technical Features
Lux rating is the measurement used to indicate how sensitive a camera is to light, and stands for the level of light reflected off a piece of paper by a candle from one meter away. Thus a sensitivity of three Lux would mean a camera could generate an acceptable picture of a piece-of-paper-sized object that was illuminated by the equivalent of three candles from one meter away. The lower the Lux level, the better the camera's ability to work in low-light conditions. The camera's resolution should be greater than or equal to the resolution supported by the system's recorder or monitor. The S/N, or signal to noise ratio, is an important measure of a camera's quality. A poor camera, low-light conditions or poor wiring causes "noise" which consumes processing power and disk space. A camera with a wide dynamic range is ideal, especially for recording areas in which both indoor and outdoor light are present. CCD (charge-coupled device) sensors provide high-quality images that are less susceptible to noise. CMOS (complimentary metal-oxide semiconductor) sensors offer less image quality, but are usually more cost-effective and energy efficient.
Product Description
Fully operational speaker1/3" CCD camera3.6mm wide-angle lens380 lines of resolution0.5 lux minimum illuminationIncludes 12V DC power supply
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