Description Feature: -Large capacity, long standby for time. -In 1range error, the product will auto Self Leveling. -Multifunctional application. -Automatic laser- marking instrument is laser- marking instrument a cost-effective new interior decoration use measuring instruments. -It can help you improve work efficiency, make the measurement work in the complex. -The instrument has the level, vertical, and many other functions. Specifications: Laser wave length:500nm Working distance:5m Power:2x AAA battery(not included) Working temp:27-42 Accuracy:1 Color:yellow Tyope:laser- level Material: plastic Accuracy class: class ll Application:indoor, outdoor Package Included: 1x laser- level