About Dropshipping:1.Accept Dropshipping, and we will DO NOT put any invoices, QR codes, promotions in the shipment, So Dont worry, Just buy it, we will do anything well for you .2.We are guarantee each device be tested rigorous before shipped out, SO all products can guarantee 100% high quality before sent out.Thank you very much!!!Power: 1.5V (AAA) x 2 (battery not included)Larger 2.0inch LCDLaser Rangefinder 50m Laser Distance Meter digital Distance Measurer Trena Laser Tape Range Finder Measure ruler Roulette ToolSNDWAY New arrive laser distance meter has following features:1, Measurement unit options:m/ft/in2, 30 units data storage3, High accuracy2mmand wide measuring: 50M4, Set up front / rear benchmark.5,Large 2.0inch LCDwith backlight.6,DoubleAir Bubble Specifications Brand SNDWAY Model Name SW-TG50 Measure Distance, Area, Volume, pythagorean MeasuringRange 0.05-50m Accuracy 2mm Unit option m/in/ft Display Larger 2.0 inch LCD display Bubble Dobule air bubble Pythagorean measurement Full mode Single /Continuous measurement Yes DistanceArea Volume measurement Yes Add and subtract measuremen Yes Min/Max value Yes Max storage 30 units Automatic backlight Yes Buttons/Keys sound Yes Laser level LaserII 635nm,<1mW Laser off 20s Automatic shutdown 150s Storage temperature/humidity 20-60 /20%-80%RH Working temperature 0-40 Set up front / rear benchmark Yes Data Hold / Data clear function Yes IP54 protection (dust & splash proof): Yes Product Weight / Size 91g / 112*50*25mm Package Weight/ Size 200g / 160 x 85 x 50mm Packing Contents 1*50M Laser distance meter1*Portable pouch1*Hanging rope1*User manual1*Retail box Diagram Description 1.Power supply 2.Record 3.Length,Area,Volume and Pythagorean 4.Laser on 5.Maximum 6.Auxiliary display 7.Minimum 8.Major display 9.Turn on/Measuring 10.Addition 11.Subtraction/Sound 12.Area/Volume/Pythagorean 13.Save 14.Reference point/Unit switch 15.Turn off/Remove You may get some warning information as below: Information Cause Solution Err Out of distance measurement range Use the device within the range Err 1 Signal is too weak Chose the surface with stronger reflectance.Use the reflecting plate Err 2 Signal is too strong Chose the surface with weaker reflectance.Use the reflecting plate Err 3 Low battery voltage Change the power supply Err 4 The working temperature is out of working range Use the device in the specified Err 5 Pythagoras measuring error Re-measure and ensure that Hypotenuse is bigger than Cathetus