Bests & Worsts Reviews from Amazon

Perhaps like most of your folks, you are indecisive whether to purchase the yard Sentinel because of the mixed reviews. I took a chance and purchased this item and I believe the reason it has mixed reviews is because of how diverse it can be set up to repel different types of animals. I will share my personal experience of how I've used it to frighten off raccoons. I live in Brooklyn, New York and most recently we've had an invasion of raccoons. Now, these animals are very intelligent and had a habit of using our extension of our home as a latrine. We set up the detector outside our window facing the area where they frequently visited and the first night we set it up, all we heard is the pitter patter of quick paws on the roof avoiding the detector . We have solved our dilemma. POSITIVE NOTES: First: As I've captioned there are different settings for animals so please ensure you read the manual thoroughly to target your problem. Second: There's also a frequency distance range in which you can target the bothersome area; Third: An audio setting depending again on the type of animal you want to keep away; the audio sound does not necessarily need to be loud to repel the animal--depending on the animal it's the ultrasonic sound that does the trick. Fourth: There's a choice to have it battery operated or electric--I've only used the electrical set up; Fifth: There's an operating selection feature where this can be specifically set up 24 hours, or by day or night time. DRAWBACKS: I must share that the sensitivity range is quite high...I believe too sensitive . When it's too windy, the detector will detect the trees blowing and will trigger the sound--we simply unplug it at night during those extreme times. My second concern is the casing backing is rubber and doesn't feel to be entirely water proof. It has not been damaged in the rain but I would not take a chance and perhaps put it in a protective outdoor place. Third, the detector needs basically an open area to be effective, if you have it over a ledge where it's partially blocked by a wall or roof...it won't detect through that area. I know, that's just common sense, but I simply wanted to post. So there you have it folks, it has helped us incredibly with our raccoon problem only. I hope this review was helpful.