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Receivers can easily penetrate brick walls, glass windows and other materials depending, of course, on their ability and strength. Others have a monitor and a time lapse VCR in the same console. WCCTV technology uses microwaves in the form of radar, radio, or lasers to transmit the camera signals to a remote location-a radio receiver, a DVR, your PC or laptop, or wherever else you'd like to view the images. When most people think of hidden cameras they immediately think of the nanny cams on the market to help parents monitor how their children are being cared for when they're not around. Most of the video processing is done by hardware, therefore eliminating system crashes. In some systems you can also find a special monitor. In short runs plug and play non-coaxial cables with factory installed BNC connectors may be used (up to 150 ft.). Because wireless cameras don't use cables, they're portable, low-maintenance, and easy to install. It is great for use in stores, lobbies, gas stations and other public places. Practical solutions for covert installation also include Motion and Smoke Detector cameras, although they are absolutely not a substitute for your security alarm or fire protection. Most Bullet cameras, in comparison, do not offer high resolution and lens selection flexibility, but are likely to be weatherproof.

Security Monitors Any camera installation will require proper wiring.

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So why keep asking? A simple recording camera could easily clear all of these uncertainties. On the other hand color cameras offer more realistic and natural pictures. Since the lenses in board cameras are pre-mounted, have a fixed iris and are usually of a short focal length (i.e. wide angle), their flexibility of usefulness is limited. Even though CCTV cameras need light to pick up images and can't get a clear picture in the dark, that's not a problem if you have an infrared illuminator. By flooding the area with invisible infrared light, IR illuminators let you keep an eye on intruders who mistakenly think nighttime is the right time to break in. Speco IR-200 Infrared IlluminatorOf course, if you want IR-illumination to work, you have to use the right cameras. Black-and-white surveillance cameras are the most IR-sensitive; most color-cameras are equipped with filters that block out infrared light to enhance image quality. Many manufacturers have come out with IR-sensitive dual-mode cameras, which offer color images and can switch from daytime to night vision automatically, but the IR-sensitivity of these, too, varies according to the camera. So if you're investing in a CCTV system and want to incorporate IR illumination, make sure you check the cameras for IR-sensitivity in advance. Pinhole lens cameras are often called "spy" cameras and may be mounted in a concealed way for covert surveillance purposes. with all kinds of other gadgets and accessories-in small, unassuming surveillance cameras that look like streetlights. It is also known that black and white cameras perform better than color cameras in areas with poor lighting. Many wireless cameras are basically board cameras with built-in transmitters. Board cameras are sold as plain circuit boards, for integrating into hidden camera devices. CCTV cameras are usually divided into different types based on the body of the camera used:

It differs from broadcast TV in that its elements are directly linked (i.e. closed circuit) by cables or different wireless technologies. Darker environments require 1/3" - 1" sizes.

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