108070 SNDWAY Laser Rangefinder Distance Meter Electronics Roulette Digital Ruler Trena Laser Tape Measure Laser Distance Meter Instant measurement of distance, area & volume with one button operation: YES Self Calibration: YESWide measuring range: YESHigh accuracy: 2mm (0.079inch)Automatic calculation of Area and Volume: YESIndirect measurement by Pythagorean Theorem: YESSingle/Continous measurement: YESMax/Min distance tracking (display value): YESEasy Addition/ Subtraction of measurement: YESSet up front / rear benchmark: YESSelectable meter(m), inch(in) and feet(ft): YESData store/ recall function: YESData Hold / Data clear function: 30 unitsAir Bubble Level: YES, IncludedEasy targeting with bright laser pointer: YESLarge LCD with backlight and multi-line display (4 lines): YESAuto correction and error report technology: YESBuzzer indication: YESBattery status Indication: YESIP54 protection (dust & splash proof): YESAuto / Manual power off function: YESMultifunction with intelligent calculation: YESCompact & handy design: YESCE, ROHS, FCC certificate: YES 1.ModelSW-DS50/SW-DS70/SW-DS100/SW-DS1202.Working Range0.05~50m/70m/100m/120m3.Distance measurement precision2mm4.Continuous measurement functionyes5.Area measurement functionyes6.Volume measurement functionyes7.Pythagorean measurementFull mode8.Unit optionsm/in/ft9.Painter functionyes10.Angle functionyes11.Add and subtract measurementyes12.Working temperature0C~40C13.Storage temperature-20C~60C14.Storage humidity20%~80% RH15.Min/Max valueyes16.Self-Calibrationyes17.Laser levelII18.Laser type635nm,<1mW19.Max storage30 units20.Automatically cut off laser20s21.Automatic shutdown150s22.Battery life8000 times for single measurement23.Battery2x1.5V AAA (not included)24.Buttons/keys soundyes25. Product dimension112x50x25mm 1 X LASER DISTANCE METER(not included battery)1 X EngLish USER'S MANUAL1 X Portable bag1 X Hand strap1 x Gift box1 x Reflector