Use Nanny Cameras And Door And Window Alarms To Keep A Watchful Eye On Your Home

In the past twenty years, devices such as nanny cameras have moved from the domain

of the rich and famous and into the living rooms of ordinary, nine-to-five working folk. The same is true of formerly unaffordable technologies like door and window sensors and motion detector alarms.

Magnetic alarm contacts, the twin magnetic pads used to make door alarms, cost less than $4, and are available at the majority of major hardware stores. These contacts are used to form a circuit that's broken when a door or window is opened. They're so easy to install that many people these days are undertaking the job of incorporating them into their home security surveillance system themselves. Of course, if mucking about with silicone guns and tubes of wood glue isn't your bag, security companies such as ADT are usually willing to do the job at minimal cost for their customers (though this will, of course, only apply if you're signed up for their security services).

Installing contacts should be your first priority, as they constitute the first line of your home security surveillance system's defense against that hostile world trying to break into your home. The second line, should someone succeed in breaking in by smashing or cutting the glass of your windows, should be motion detector alarms. These are also fairly inexpensive. There are a few different types, which use different technological principles but wind up having pretty much the same effect. UWB (Ultra-Wideband) radar detectors are one. These emit sonar or radar signals, the same technology used to, you guessed it, detect enemy submarines in times of war. If the signal such a device emits gets bounced back sooner than expect, the device will register that something has moved across its detection field, and activate the alarm siren.

PIR motion detector alarms are the more common variety in modern home security surveillance systems. The acronym stands for 'passive infrared', as these devices passively sit and 'stare' over a fixed distance, registering the heat of the various objects in that area. If the temperature of that area changes in just one place (rather than ambiently), the motion detector will register that as motion. These are the kinds of devices you'll typically find over peoples' front doors or driveways, used to switch on a porch or outdoor light when they sense any disturbance.

Nanny cameras have probably evolved the most out of all home security surveillance systems - their footage can be viewed online over your cellphone, allowing you peace of mind even when you're a continent away. In fact, this is an effect you can have with your entire home security surveillance system. Simply install decent webcams covering relevant parts of the house, and you'll be able to see not only your baby but also whatever the nanny might be doing with the house while you're gone.

The data from your nanny cameras can be streamed to an online storage cluster, and stored for days, weeks or months (depending on how much you're willing to pay for the privilege), allowing you to review incidents long after they transpire. Of course, online storage is only cheap up to a point - a serious home security surveillance system might call for many terabytes of storage space, assuming that you're recording every minute of every day from multiple cameras.

There is a way to get around this, of course. It's as simple as using your motion detector alarms, along with your door and window alarms, to activate your webcams, so that they're only switched on when there's actually something going on in the house. There is a variety of software designed to integrate home security surveillance systems that allows for this, and numerous brands of security camera come equipped with motion detection right out the box.

by: Jeffrey Parker

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