mini cameras night vision camera wireless hidden security camera home cctv systems body worn cameras motion activated spy camera
Lux units measure sensitivity, that is, the amount of light per square meter. Low lux units in the camera's specs means it has enhanced ability to operate in poor ambient light conditions. bullet cameras are a great choice for residential and do-it-yourself (DIY) installations where monitoring objects are within about 25ft from the camera location (with standard 3.6mm lens). Most board cameras also come with 3.6mm lenses, although some will allow lenses to be replaced. Being very simple to install and estheticly designed. The camera you buy should fit 'naturally' into its surroundings in such a way that it does not draw attention. For a common size household, the most suitable system is a quad cam. Another advantage of wireless cameras is their remote monitoring capabilities. This basic kit consists of four wireless surveillance cameras, a small monitor and a recording device. Also check the camera's sensitivity to light. with all kinds of other gadgets and accessories-in small, unassuming surveillance cameras that look like streetlights.
Professional type cameras with C/CS mount lens attachments generally offer the best performance. Buying Tips
Professional grade cameras have a box type body with the ability to use different types and sizes of lenses. Theoretically DVRs can record for weeks on end, depending of course on memory, recording quality and speed. Most cameras are wireless and run on batteries. Make sure that the monitor you're using has a compatible resolution. For instance: a camera's night vision can be improved by adding an infrared illuminator under the camera bracket. There are three main types of IR illuminators: diodes, lamps, and lasers. Diodes are small, inexpensive, and good for short-range illumination. They also require relatively little power to operate. Infrared lamps are more expensive to buy and maintain, but they can operate at greater distances and are often better for facial identification. Lasers are excellent for long-range image clarity, even in inclement weather, but they're big, expensive, and potentially harmful to the eye if not handled correctly-which is why they're usually only reserved for military use. Standalone Systems Aren't there plenty of perfectly good, modern digital security cameras that aren't wireless? As a rule of thumb, the larger the size, the higher the quality of the image produced and the higher the price. How Do Wireless Cameras Work?
The size of the CCD chip is normally 1/4", 1/3" or 1/2". Some systems can only be used over short distances like a nearby room or house, while others can be useful from miles away.