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Then, you need to take the provided backplate and fix it to the wall/ceiling using the four screws and afterwards, just connect the smoke detector to the backplate using a circular motion if you have the wire powered version, the installing process also includes connecting the device to a power source, but, it’s ideal that this is done by a qualified person, to make sure the installation is made in accordance with the country or state’s regulations. The way to differentiate the first and the second generation of Nest Protect is by verifying if it has a battery door the Nest Protect 1 does not have one, verify the back plate the second generation has a round backplate, while the first has a square plate and the easiest one is to look at the edges of the device the second generation has rounded corners all around the case, while the first gen has straight edges. Right now, on the market, there are three types of smoke detectors: those that use ionization sensors, those that use photoelectric sensors and lastly, those that use both type of sensors also called dual sensor smoke alarms. The Nest Protect, theoretically, falls into the last category, but things are a bit more complicated because it doesn’t have a ionization sensor, but it does use the Split Spectrum Sensor which nullifies the need of the radioactive ionization sensor as you know, it detects smoke produced by flaming fires which burn at a fast rate so, if the ionized air is disrupted by smoke, it triggers the alarm. The photoelectric sensors is used to detect any smouldering fires that uses a light beam which, normally does not hit the sensor, but when smoke scatters the light particles, it will hit the sensor, therefore triggering the alarms – this method is used to detect a fire in its early stages, therefore reacting a lot faster. Now, the Split Spectrum Sensor should detect both the flaming fires and the smouldering ones, by adding a blue LED light at a wavelength of 450nm to look for small particles which are an indicator of a rapid, fast burning fire and keeping the usual photoelectric sensor to detect smouldering fires.

Posted March, 2011 by Admin

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The end goal is to enhance the existing products and make them more intelligent and help the customer reduce false alarms and bring their total security experience to the next level. But Inder Reddy, Honeywell Security and Fire, says there are actually two schools of thought on where monitoring may be headed. “Some customers have absolutely said ‘We want to leverage our expertise so we are going to get out of the monitoring business and focus on customer service. ’ But as software becomes more and more the way to do things, you could make the case that SaaS types of services are much more scalable and you don’t need to be so large to have economies of scale. For the moment it seems that a lot of active central stations are looking to outsource to wholesale and reapply that cash to grow their RMR business. ”Pam Petrow, Vector Security, also senses change in the wind.

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Posted February, 2011 by Admin

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