Description: Angle finder/protractor provides quick&accurate measurement in woodworking construction machinery telecommunications automobile etc. EBTN LCD is convenient to read. Small and light it is real easy to be carried and used. The magnets in 4 facets allow you to attach the gauge to any steel object. It is especially easy to measure the pitch of helicopter bevel angle of miter saw automobile and repair and so on. Features: Small and Light Makes it Convenient to Carry Powerful built-in magnets on the base secures the attachment to any iron surface Large EBTN (enhanced background twisted nematic) LCD display greatly enhance the reading experience the lighted up numbers & letters with black background make it very easy to read even in bright sunlight or poor light. The display was inverted automatically when the upside is down. Auto power off after 3 minutes of no operation Specification: Measuring Range:4*90 Accuracy: +/- 0.1 degrees at 0 and 90 degrees and +/-0.2 degrees the remainder Resolution: 0.05 degree Waterproof: IP54 Power: 2 x 1.5V battery (Russian warehouseSpain warehousePoland warehouseinclude batteryfrom china to sent not include battery) Working temperature: 0 - 40 Working humidity: 40% - 80% Battery: require 2 x 1.5V batteries Package Included: 1 x Digital Level Box 1 x User Manual Certification:CE Certification:FCC Certification:RoHS Origin:CN(Origin) Model Number:RZ838 is_customized:Yes Model:RZ838 90 degree ruler:percision measuring tools Mini Measuring Digital Inclinometer:bevel protractor digital inclinometer:inclinometer universal bevel protractor:mini digital protractor electronic protractor:angle protractor digital protractor:digital protractor inclinometer protractor:protractor angle measuring tools:goniometer