Glad you found the review helpful. It has been a few years now, and we still have this system in our garden in the summer. It seems to really work to keep the ground squirrels from coming in, but I think the deer have gotten used to it now. So we use it in combination with a motion sensing water sprinkler which comes on for about 10 seconds anytime movement is detected. Together, they work really well!
It works pretty well in the garden, but we found that after a while, some of the critters (mice, ground squirrels et cetera) got used to it and started coming around again. The best device we found to work in the garden so far, is a motion activated water sprinkler. We got one for deer primarily, but it also works for other species as well. We got ours on Amazon, but I'm sure they are sold many places. Good luck!
What would you do for a "real test"? I don't own - nor am I going to buy an oscilloscope for this inexpensive pest deterrent, and the app I used worked quite well, actually. Looking forward to hearing your suggestions for a "real test."
