FEATURES: Top Laser distance measurer (LDM) or Top Laser distance Meter manufactured to withstand the inevitable job site drops and falls on the Job site, It has a range of up to 100m and an accuracy of +/- 1mm, Common end-user functions: linear meter readings; surface and volume calculations. It will add or subtract readings and calculate distance in Metric and Imperial, The user can select the unit to continually measure which allows layout applications, Pythagoras indirect height function will allow to measure distances even when point A and/or point B isn?t accessible for linear measurement, Triangular area calculation to provide angle measurement, Integrated inclinometer: Can be used as a digital level; calculate indirect height values; or indirect horizontal distances, Unit stores last 20 measurements, The unit has large; raised; oversized buttons to avoid miss measures, Large backlit; 3 line display to provide visibility in all working conditions, Multifunctional end piece: Delivers versatility and accuracy of measurements in corners and vertical surface, The unit has a flat base that gives a solid platform to measure without the unit shaking and moving to help avoid measuring errors, Will survive a 2m drop onto concrete and has an IP65 water/debris resistance, Comes complete with two AAA batteries and a belt pouch. SPECIFICATIONS: Laser class: Class 2, Levelling Accuracy: +/- 1mm/m, Number of beams: 1, Indoor Visibility Range: 100 m, Power Source: 2 x 1.5v dc LR03 (AAA-size) batteries, Tripod connection: yes, Weight (incl. battery): 130 g