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Title: Won't work in small area or for raised bed garden.
Review: This could not detect anything in my raised bed garden unless I raised it. So I put it in the garden so it would be level but then it wouldn't detect at that distance, only further out. This would work in a large level area, but if your yard is not flat, I don't think it would work. Sometimes wouldn't detect if you stood right in front of it. Unreliable. Need something to keep the cats away, but this won't work in my yard. It has to be far away from the area you are protecting to detect anything.
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