I have had a problem with people climbing over my back yard fence. I'm trying to hash out a new idea for detecting when someone climbs over the backyard fence. I've tried motion detectors, but birds and squirrels and my dogs keep setting it off.
Do you guys think this plan will work?
I want to install lag eye screws like these
at the top of all the fence posts, and run string or fishing line through it.
I'll then attach the end of the string to the DS10a magnetic contact and mount the other part to the fence. Hopefully when someone grabs the top of the fence to pull their weight over, the string will get pulled and the magnetic contact will pull away from the sensor. Would that work?
Its going to have to be fairly stong string that doesn't stretch over time.