ANENG B40/60/80/100 Laser Distance Meter Digital Laser Range Finder Distance Area Volume Multimeter Test Tool Measure DeviceNote:B40, B60, B80, and B100 represent different models and different ranging distances.Features:User-friendly slippery-resistant texture design.Designed with bubble level, making measurement more accurate.LCD backlight screen, reading is more clear and bright;Dustproof and waterproof level;1.5mm accuracy, stable and reliable measurement.Specifications: Model B40/B60/B80/B100 Range of measurement 0.05-100m Measurement accuracy 1.5mm Measurement basis selection Pre-basis/post basis Measurement unit selection m/inch/feet Area and volume calculation method Yes Pythagorean theorem calculation method Yes Height difference Yes Addition/subtraction function Yes Continuous measurement Yes Storage of historical data Yes Buzzer Yes Battery type 2x1.5V AAA(not inclued) Battery life 10.000 Laser cla Cla II Dustproof and waterproof cla Ordinary civil cla Operating temperature 0 to 40 Storage temperature -25 to 70 Package Includes:1 x Laser Distance Meter(according to the choice)1 x Package rope1 x Packing bag1 x Instruction manual1 x Packing box(according to the choice)