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For example, smaller components such as door/window sensors typically use Z Wave or Zigbee technology because they don't require a lot of power and can be powered by smaller batteries. They also operate in a mesh topology and can help extend the range of networked devices. However, neither protocol provides the bandwidth that you get with Wi Fi, which is why it is usually used in security cameras to provide smooth video streaming, and in other devices that require a fat pipe. Moreover, Z Wave and Zigbee devices are connected and controlled using a hub, while Wi Fi devices can be connected directly to your home network and controlled with an app. Finally, Z Wave and Zigbee devices use AES 128 encryption, and since they operate in a closed system with a dedicated hub, they offer more security than Wi Fi devices. Any smart security system worth its salt offers components that work together in a seamless environment and can be manipulated using customized rules.

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If you go to , there is a home security audit checklist on the site to help you identify potential weak areas in your security and offer solutions. We've all had those moments: we're on our way to work or even on vacation and wondered if we locked the back door or forgot to turn off the lights. Home security systems are getting more sophisticated, and can now help give some extra peace of mind. New alarm systems not only help people keep tabs on any unusual activity at their home, but they are making everyday living more convenient. "We've also built in the home automation capabilities where now you can control your lights, control your thermostat, you can control video cameras, and view video cameras and all of those devices work together seamlessly," said Xfinity Home Vice President Dennis Mathew. Comcast began rolling out its wireless Xfinity Home system in 2012 and now is available in Comcast served area across the country. Ray Child has the system in his home, and said it helps him keep tabs on everything via his PC, tablet and smartphone. "I can't tell you how many times whether it's a trip across town or across the country where I've had that 'ah ha' moment where I didn't turn on my security system," Mathew said. "I can be driving down the road and say, 'I really want those lights on,' so I can remotely turn on the lights. "This particular system also will control your home heating and cooling system. The "Eco Saver" feature will track your heating and cooling habits, and over time, automatically make adjustments to make the system run more efficiently and plot out the data month by month.

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