We have had extremely good luck with this. It works. It has lasted for years.
Amazon.com: Contech Electronics CRO101 Scarecrow Motion-Activated Sprinkler: Patio, Lawn & Garden
(I suspect the negative reviews are from people too dumb to set it up properly).
Amazon.com: Contech Electronics CRO101 Scarecrow Motion-Activated Sprinkler: Patio, Lawn & Garden
(I suspect the negative reviews are from people too dumb to set it up properly).