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• Weather resistant design. Since outdoor cameras are made weather resistant you don’t have to stress about building compartments for your cameras or having the need to buy replacements on an untimely manner. • Various recording resolutions. Resolution for recording com in various settings so you have different options to choose from according to need. • Various display resolutions. You are also able to view recordings in different resolutions to help have a better view of the data recorded. • Various recording modes. Various recording modes include time of recording and how long a recording should be on different schedules. • Compatible with other devices. This system is can be easily connected to different gadgets. Maintaining to date on trending house decoration typically means one of three things.

Posted March, 2011 by Admin

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home security comparison

The type of sensor installed in a smoke detector may also dictate the price range, since there are sensors that have more expensive components than those of the other types. Among the types of sensors presently used by several manufacturers of smoke detectors are the ionization type, the optic sensor – also called photo electric sensor, the air sampling sensor, and combination type sensors. A smoke detector with an ionization type sensor uses what is called radio isotopes that produce ionization in the air. The process is quite technical, but what this type of detector contains is ionized air molecules in a chamber inside the device. The ionized air carries electrical current and maintains that current, until something disrupts the air molecules. When the air molecules are disrupted, usually by smoke, the current drops, and an electrical circuit sound the alarm. Ionization smoke detectors are said to be cheaper to manufacture, but the downside is that they are prone to false alarms. They sound the alarm at the slightest degree of disruption in the ionized air, even from ordinary smoke in the kitchen. Types Of Smoke DetectorPhotoelectric smoke detectors or optical smoke detectors They are widely available, but recently smoke detectors using ionization technology and laser technology are making an introduction in the market. Photoelectric smoke detectors can detect slow, smoldering smoke the fastest, like the thick smoke when a couch or mattress is one fire. In comparison to smoke detectors using ionization technology, photoelectric smoke detectors set off an alarm earlier on slow burning materials.

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Posted February, 2011 by Admin

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