SNDWAY Rangefinder Laser Distance Meter Range Hand Tool Device Finder Electronic T40/T60/T80/T100 Instant measurement of distance, area & volume with one button operation: YESSelf 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 Measuring range: 0.05~40m/0.05~60m/0.05~80m/0.05~100mAcurracy: 2mmLaser cla: Cla IILaser maximum output: <1MwDust & Splash proof: IP 54Laser Auto off: 20sPower Auto off: 3minOperation temperature: 0~40C (32~104F)Storage temperature: -10~60C (14~140F)Power supply: 2 x 1.5V AAA battery(Not included)Weight (without battery): 90gSize : 112*50*25mm 1 X LASER DISTANCE METER1 X EngLish USER'S MANUAL1 X Hand strap1 x Gift box1 xReflector