I purchased the Yard Guard to repel squirrels and raccoons from my bird feeder. It did absolutely nothing to repel squirrels or coons, in fact, I have video of a coon feasting on my feeder with the Yard Guard clearly in view. I adjusted the frequencey settings perioodically to get some positive results, but to no avail. I've purchased other items from Gardener's Edge catalog (Electric Hoe among others) and have been very satisfied, but the complete failure of Yard Guard to do what it claims to do, i.e., keep pests away, has me questioning the reliabilty of claims made about other products I'm intersted in buying from the company.
I bought the YardGard as part of an integrated effort to keep critters out of my garden to see whether I could avoid fencing the whole thing. The YG was set up to work, at a distance from but in conjunction with two proximity alarmed water-spraying Scare Crows. While the Scare Crows seemed to work well in repelling rabbits and deer, they missed on detecting chipmonks. The YG, placed so as not to be effected by the water sprays was more difficult to judge and after one battery change I noticed that it was running continuously regardless of whether anything was in its range or not. In the end I had to remove its batteries. So, overall, I cannot give an honest judgement on the device but be advised that I have now fenced my whole veg/fruit garden.
I purchased it to keep rabbits from tearing up my lawn furniture cushions. It is working very well, so I bought a second one, and referred a friend to purchase one
I bought this product because I have a very big problem with deer eating my flowers. I've been trying everything that I can find. I had purchased another device that is truly ultrasonic and it did work for a time. Now, the deer are back and the problem continues. This product is nothing more than a glorified radio with a motion sensor attached. The radio plays all night long and is quite the attention getter of my grandchildren. they love to hear it play. I would not pay this price again for a radio.
The Yard Guard did not stop deer, cats, or, squirrels from coming into our backyard. I did not expect it to perform miracles but it was a joke, the squirrels scampered right around it and the deer ate whatever they pleased.