The longest detection distance of the laser scanner is 70 meters, and the detection distance of the laser scanner is set to 70 meters, which is mainly used for outdoor application mode. The longer the detection distance is set, the stronger the sensitivity of the laser scanner, that is, the more sensitive to the false reflector.A white wall one metre away reflects light at the same rate as a reflector 70 metres away.Therefore, the further the laser scanner is set up, the more important it is to require a more stringent reflectorless environment.