Line laser series bosch gll laser class 2 max range with receiver 80 m max range without receiver 40 m measuring function angular degree measuring accuracy 2 mm protection class ip 54 weight 680 g operating temperature 20c 50c self levelling battery life 18h power supply 4 x 15 v display without tripod threads 14 58 inch dimensions 159 x 54 x 141 mm self levelling range 4 included in delivery target plate batteries trans