On the original carton, it is marked detection distance 12 m, while it is given in the description for 15 m. But once installed, I could verify that détectais well 15 meters, even on the sides, I have a slope and I could check that as I arrive at the correct height, it works effectively . I placed the unit under my roof 5 meters high. This is not the ideal height, which is for all sensors of all brands, rather from 2 to 2.50 m. I had to give him a bird's orientation on my way, because of that I lost in distance from the front, Still he is doing well and after a few adjustments direction it perfectly fulfilled its function and is better that my old camera had twenty years. It detects up the wall. The price is justified because it better lateral amplitude that basic detectors. It has a thin day-night setting, and a lighting time setting. It has no sensitivity adjustment, so it detects all the time to the maximum, that does not bother me to the extent I want it detects as far as possible. Because of that he manages to intercept the passage of a cat, but I prefer an effective detector rather than a colander. Dapparence solid, I hope keep it long.
