This laser distance meter measures up to 164' (50 m) and features a backlit multi-line lcd display and the ability to calculate area volume and sum of lengths. The r8005 is capable of retaining maximum and minimum readings and up to 99 measurements in memory. Features ul style""margin-top0px; padding-top 5px; padding-bottom 5px;"" designed for one-handed operation user selectable unit of measure (imperial/metric) laser target pointer reference point selection (front or rear of instrument) quick self calculation with real-time readout area volume and max/min functions addition subtraction and indirect 2/3 point (pythagoras) calculations integrated bubble level (horizontal and vertical) continuous measurement mode low battery indicator and auto shut-off applications ul style""margin-top0px; padding-top 5px; padding-bottom 5px;"" measuring conduit and wire lengths light retrofitting projects piping/exhausts/ventilation and equipment installation conduit layout and installation air ventilation and duct work positioning air volume calculations hot/cold water piping locations determining wire length and duct sizing floor plans network room layout