The stabila lar250 self levelling rotation laser with gradient function speed control scan and rotation function ideal for internal and external use 8 measuring functions extremely robust technology the ideal construction industry laser its robust design with patented sps shock protection system prevents the laser from being damaged if accidently dropped onto concrete ip65 rated against water projected from a nozzle dust tight it also works in extrem outdoor temperatures 10 to 60c 14 to 14