Speco Technologies Miniature Weather-Proof Color Bullet Camera

This bullet camera utilizes a 0.33-inch color Sony HAD CCD (charge-coupled device) image sensor with a 3.6-millimeter fixed lens. The CVC-637EX has an extremely high resolution of 470 horizontal TVL (TV lines), and achieves a S/N (signal-to-noise) ratio of 50 dB or better. Very sensitive to light, this unit can receive a clear and usable picture with a minimum illumination of 0.03 Lux. The SPECO CVC-637EX includes a standard BNC (Bayonet Neill-Concelman) video output, runs on 12-volts DC power, and can operate in temperatures ranging from -20 to 122 degrees Fahrenheit. The CVC-637EX comes complete with a built-in automatic electronic shutter with speeds ranging from 1/60 to 1/100,000 of a second.

Technical Features:

• S/N ratio: better than 50 dB
• Minimum illumination: 0.03 Lux
• Horizontal resolution: 470 TVL
• Operating temperatures: -20 to 122 degrees F
• Dimensions: 1 x 2.6 inches (diameter x depth)

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.