YINGNEW Laser Distance Measure 100M 328ft Range Finder with Continuous Measurement 1.MULTI MEASUREMENT 0.05 to 100m(0.16 to 328ft) :Distance / Continuous / Area / Volume / Pythagorean measurment 2.UNIT SELECTION : Metric and English , meters /inches /feets ,Accuracy Up to  2 mm(0.079 inch) 3.MEASURING POINT : From the front, middle or back of the unit 4.LARGE BACKLIT LCD:The large backlit LCD display which makes it easy to use in dark conditions 5.SMALL COMPACT DESIGN :Fits in your pocket or work belt well and seems pretty durable,Dust Proof and Waterproof