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For close range facial capture up to 10ft from the camera, we suggest using analog cameras or HDCVI 1. 3 megapixel cameras because they are inexpensive. For scenarios where more detail is needed at a wide 80 degree angle we suggest using 2 megapixel HDCVI cameras or 3 megapixel IP cameras. Indoor security cameras are a necessary component of business security systems. Whether you have a retail store, office, or large corporation, indoor cameras help keep an eye on employees and customers and safeguard the business from shrinkage and lawsuits. We've seen customers opt for security camera kits from the big box stores, which for the most part contain cheap CMOS sensor cameras.

 

Blandit Etiam

Smoke detectors can only alert you if there’s fire. The rest depends on the homeowner’s preparation and other fire prevention safety measures. Equip yourself with fire extinguishers and sprinklers, too, if necessary. Photo Electric or Optical Sensors They are triggered by smoke disturbing an existing beam of light inside the detector. When smoke is not present, the beam from a light source inside the device travels in a straight line to a detector, but when smoke particles enter, some of the light is scattered and triggers the electrical circuit that sounds the alarm. Air Sampling Detectors These have sensors that are capable of detecting microscopic smoke particles in the air. They actually draw air into the detector and passes it into minute pipes that lead to a laser optical device that has the capability to detect minute particles of combustion. When the laser detects the unusual content, it triggers the alarm. Combination Type Detectors It use both ionization and optical sensors, as mandated by some states. Ionization detectors tend to react slower, and may not warn people inside the house or commercial buildings adequately enough to be able to make it to the exit. So fire departments and legislative bodies recommended installing photo electric smoke detectors, or combination type detectors.