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Old August 1, 2013, 11:10 AM   #3
Senior Member
Join Date: February 16, 2006
Location: IOWA
Posts: 6,994
They do work well !!!

They must be adjustable for sensitivity.
Bingo and placement is important as well. Not sure which ones you are looking at but there are even some that are wireless. You can also take a basic motion sensor controller such as one on security light and wire it to perform this function. Service is not exclusive to driveways as you can mount them all around the outside of your home. There are also models that have battery back-up. ......

Be Safe !!!
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