Our 30 acre vineyard is located on the side of a mountain that is also covered with dense forest. The deer were ruining our crop at several locations, and I was going to put in a deer fence (cost estimate of $30,000). I saw your ad and decided to try your product first. I’m afraid the fence installer is going to be disappointed as I have no need for an expensive fence now that I have started using Nite Guard. We have had no issues with crop loss where we have used your product. I have just ordered several more so that we can protect our entire vineyard. Thanks for a great product that really works!