From: <db...@th...> - 2007-12-04 19:27:08
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Mr. T continued: >Yes, you can supervise inexpensive, wireless X10 sensors. Are these sensors >engineered like commercial units? No. Are they used in commercial >installations? No. (At least not by the security firm I work for nor by our >competition.) In what ways are they engineered to lesser standards than commercial units? Are they less reliable? Do you have the statistics to support such a claim? >Yes, you can use strain gauges to detect floor movement. Is this a commonly >used technique? Not while there are other effective, >easier-to-install/replace, devices available. Easier-to-install generally equates to cheaper and better for the bottom line of the installer. Do joist sensors take more extensive engineering and careful installation? Are they more critical with regards to configuration and calibration? Certainly! And I wouldn't expect any common commercial home security company to be in any way interested in them. But in a high-end, high security office complex or home of the extremely rich, I bet they are indeed used. And why shouldn't a tech-savvy user consider them? >Yes folks, there are many gadgets available to monitor one's premises. I'm >not downplaying the importance of the "inexpensive and resourceful" camp >nor the "cutting-edge and eye-opening" group. However, when it comes to >home-security, there are established, effective, and certified, >products/techniques designed to ensure security. "established, effective, and certified, products" again refers to conservative, well-understood devices and techniques that a service company can install quickly and cheaply, sometimes by minimally trained personnel, and not have to fiddle with or worry about the common clay of homeowners maintaining (batteries, UPS, etc.) >Directing JGreeno to use X10 wireless sensors and a few lines of Perl is >doing him a disservice. JGreeno needs to know what the baseline is for >residential security and then he can choose to make whatever compromises or >improvements he deems appropriate. All well and good, but directing him to NOT consider X10 wireless sensors and a few lines of Perl is pretty much an equal disservice, in my opinion. Dave |