Laser Level Measurement Laser measureFunctions: 3 mode laser level,8ft fine-tuned tape measure, 3 way leveling bubble, 2 metric ruler measuresLaser Ranging Error, that is given as ""+/-2mm at 10m and 25m.Tape Error, down to 1/32"" and 1mm.3 x AG 13 button-cellssuch as measuring locations on a w..