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Entry level systems usually include some door and window sensors, a motion detector, and a hub that communicates with these devices using one or more wireless protocols such as Wi Fi, Z Wave, Zigbee, or a proprietary mesh network. You can add extra door, motion, and window sensors to provide coverage for your entire house and build a comprehensive system that includes door locks, garage door openers, indoor and outdoor surveillance cameras, lights, sirens, smoke/CO detectors, water sensors, and more. A word about wireless protocols: In a perfect world, all home security components would use the same wireless standard to communicate with the main hub, but factors such as power requirements, signal range, price, and size make it virtually impossible to settle on just one. 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. For example, you can create rules to have the lights turn on when motion is detected, have your doors unlock when a smoke alarm goes off, and have a camera begin recording when a sensor is triggered. Some systems store recorded video locally on an SD card or a solid state drive, while others offer cloud storage.

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However, want to be exposed to nudity, pedophiles, and thousands if not millions of other social deviants?You bet it’s on the Internet and just a key touch away from your child or grandchild. So, what do we do about this?First, we educate ourselves. Go to The National Center for Missing and Exploited Children website at and download their study “Online Victimization – A Report on the Nation’s Youth. ” This report will provide an eye opening look at the perils our children are under every time they access America Online, Compuserve, or the Internet via the local Internet Service Provider. It also provides a telling survey on how parents deal with their children’s use of the Internet. For example, over 85% of parents have talked with their children about being careful talking to strangers on the Net, and 97% of those polled check every now and then on what is on their child’s computer screen. But, only half the parents ever go back and actually check history to ensure the child is indeed staying out of potential problem sites, and only 39% set a limit on the amount of time their child can be on the Internet. Though it appears that parents do realize the potential exposure their children have on the Net, less than 1/2 play a truly diligent role in ensuring their child is protected. Second, we educate others. Gather information from such sites as The National Center and tens of other child advocacy sites including , and speak to your fellow parents in your school system about the dangers presented to our children on the Internet. Stay tuned for future articles on ways to prevent your children from being exposed to unsuitable material.