dealsdriveway patrol sensor and receiver kit for $12.95

18
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I actually use this item a bit differently: My Gran is high fall risk/dementia and I use this in her bedroom to alert me when she gets out of bed in case I'm not in that area of the house. Installation is simply putting a nail in the wall and hanging it.

The alarm has 2 volumes: loud and holy crap you just gave me a heart attack loud.

Price is cheaper than what I paid for mine ($18).

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Who says what you don't know can't hurt you...
This just tripled me saying "get off my damn lawn"

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I think I'm mainly going to use it as a tip off my mail is here so I can rush and get my package from Woot.

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I love mine. I use it to alert me to when cats are using my planter box as a litter box. On semi-cloudy days, this will trigger every few minutes as clouds cause changes in shadows.

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One nice thing about this is the receiver will also operate on rechargeable AA cells. AA batts are the same length as C cells and the drain isn't that high.

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I own one of these already and it's crap. Would probably work fine inside the house (like suggested for granny), but as an actual "driveway" alarm, it's not worth the money. I had to go out and buy another because it wouldn't work.

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FWIW, we have been using the same product sold by Harbor Freight for about a year and happy with them. The plastic has started to fade in the sun and I don't expect these units to last long. we have 2 detectors on the same channel at each entrance of a U-shaped drive. On cold (in Southern California) they can be triggered by condensation evaporating. Animals also set it off.

They "list" at $30 but are always on sale to some degree, we regularly get a coupon for $12.

http://www.harborfreight.com/wireless-driveway-alert-system-93068.html