SNDWAY Laser Distance Meter 40M 60M 80M 100M Laser Rangefinder Laser Tape Range Finder trena ruler Diastimeter Measure Roulette 1, in the case of strong sunlight or target reflection is not good, please use the reflector 2, reflecting plate has good reflection effect and measurement on the table or floor, or as a baffle. 3, it can be used in rough uneven walls and astigmatism surface (glass lens stainless steel), the reflected signal is not good or interfere with the strengthening of local signal reflection Introduction: Our Laser distance meter is specially designed to measure the distance precisely. It comes with the function of measuring AREA, VOLUME, ADDITION, SUBTRACTION easily. It can also store 60 data. The laser distance meter is hand-held and easy to operate. You can measure the distance in Metric / Imperial. Features:Instant measurement of distance, area & volume with one button operation: YES Wide measuring range: YES High accuracy: ±2mm (0.079inch) Automatic calculation of Area and Volume: YES Indirect measurement by Pythagorean Theorem: YES Single/Continous measurement: YES Max/Min distance tracking (display value): YES Easy Addition/ Subtraction of measurement: YES Set up front / rear benchmark: YES Selectable meter(m), inch(in) and feet(ft): YES Data store/ recall function: YES Data Hold / Data clear function: YES Air Bubble Level: YES, Included Easy targeting with bright laser pointer: YES Large LCD with backlight and multi-line display (4 lines): YES Auto correction and error report technology: YES Buzzer indication: YES Battery status Indication: YES IP54 protection (dust & splash proof): YES Auto / Manual power off function: YES Multifunction with intelligent calculation: YES Compact & handy design: YES CE, ROHS, FCC certificate: YES Specifications: Measuring range: 0.05 to 80m/60M/40M (0.16 to 262ft/197ft/131ft) Acurracy: ±2mm (0.079inch) Laser class: Class II Laser maximum output: