Not disappointed with my purchase, already one month of service and no complaints about the product. It works great, the factory setting was just perfect, much simpler to plug that some inter twilight of great brand, for the same result, no delay time in contact thus ideal for light spots in an alley in opening a gate, fully satisfied my expectations. I just would have preferred it to be more discrete (hence my rating of 4 stars) but hey ..... !!! for the price we not expect the Rolls. Fast delivery, proper packaging.