You set the devices up in your yard, attach them to a garden hose, and turn on the hose. The motion detecting devices say that they protect over 1900 square feet, work day and night and even squirrels will activate them. The way that they "protect" your property is by squirting large blasts of water to deter the creatures that dare to set foot on your land.
One website describes their product this way: it “provides an environmentally-friendly and safe alternative to chemical repellents and electric fences, so it’s safe for use around your family and pets.”
I have to admit, I would love to find a product that would help keep the birds from eating the fish out of my garden pond and keep the neighborhood cats and dogs from pooping in my yard. But it just doesn’t make sense to me to waste a lot of water to do it. PLUS, if you had a few nights of really active critter activity, I would think that you would run the risk of overwatering you lawn, which really isn’t healthy for it.
What do you think?