... -proof good light beam small shape,light weight low power expending laser guiderDirection pointer, orientation and collimationwidely used to road, ... 800m)Working current≤60 mAAdjusting range of laserbeam on level and vertical≥±2.5Explosion protectionExmib IProtection gradeIP54DimensionsΦ46×230 ... DC power supply Coal Mine laneway localizer, collimator, laser guider, laser pointer, direction indicator