Finishing up a custom home, and the owner asks if there is a way to put a device in/near the driveway(lane about 200 yards long) that would sound a bell or even maybe the doorbell to give him early warning that someone is coming up the drive. I said I would check into it. 20 Years ago I worked for an alarm company and installed something(can't remember exactly how) in a 2"x8' PVC pipe under the entrance wired to a house. I'm sure there has been many improvements since then. Does anybody here install a wireless device that cold be mounted to a fence post and possibly work with a wireless doorbell system? I know I could google this, but looking for a specific reliable brand/system with minimum headaches, otherwise I may just farm this out to an alarm guy I use on commercial projects...
I tried a couple of cheap wireless driveway alarms and both worked fine and alerted when a car drove in, but - and a big but at that was the number of false alarms. It was so bad that I removed them.
It seemed that the sun as it moved across the sky would set them off, turning down sensitivity and even aiming downward with shrouds didn't work. I have no advice except to verify with extensive research by first hand users.
600 feet may be a bit far for video but some camera systems have movement alarms built into the software.
We install induction loops in the asphalt all the time in drive-thru lanes to alert people working in there when a car is waiting at the order speaker.
I'm sure there must be something like that out there for a smaller residential application.
That would be the epitome of a driveway sensor and similar to an inductive coil mentioned above, but would have to bury 600' of cable and under toe your drive.
At $300 its not a bad price for quality but would also need 1/2 day rental of a ditch witch and a bad back.
I haven't used one but if you have cameras installed there are camera analytics that can send contact closure. Those are very good and expensive but they will recognize cars or people from dogs and or other animals.
Thanks for the suggestions. Kinda like seeing chit I haven't seen before. Will check some of these out when I get a few more minutes in front of my 'puter.
Remote control traffic control spikes work fine to for unwanted guest.
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