Like Solar Powered instecho Outdoor Dog Repeller, this one is also easily found on the outskirts of my town so I can say that I have some limited experience in dealing with it.
It turned out that Zelers Mini Outdoor Repeller is extremely effective and it successfully deals with any stray cat or dog within a 25 feet area. The information on their website says that it can work on the larger range, but the reviews are mixed on that one.
This device can be easily planted in the ground or mounted on the wall of your house. “If it is so effective, why did you rank Aplus Repeller better?” you ask. For starters, know that Zelers Anti Barking Device affects dogs and cats only, unlike instecho Outdoor Repeller. Instecho also fares better in harsh weather conditions.
The thing that concerns me the most is the fact that Zeler generally performs well, but it is not always so.
Luckily, you can always contact their staff (if you bought it through proper channels) to help you. Be that as it may, this device is still widely used and the pros outweigh the cons so you can try and test it.