Digital Angle Ruler Protractor Ruler Bubble Level Digital Goniometer 230mm 360° Angle Gauges with Horizontal Vertical Circle Level Bubble, LCD Display, Dual Scale Ruler

【Measure 360° and Retain Data】 Protractor measuring range: 0-999.9°; Resolution: 0.05°(3'); Accuracy: ±0.5°; The goniometer, can measure 360° interior and exterior angles, supports conversion of degree and degree/minute units. It has hold button and zero button. To lock the data, please press the HOLD button. (Turning the knob is only for loosening and tightening, cannot fully fix the angle）

【4 in 1 Multifunctional Digital Goniometer】: This product is a combination of protractor, spirit level, circular spirit level and ruler. It is calibrated by 3 bubble levels. Help you measure the angle better. (NOTE: This is NOT a digital level, no numbers are displayed on the LCD screen, can only judge whether the object is tilted). The main rule is a double scale in metric and inches.

【Large LCD Display and Auto Shutdown】: This angle protractor has a large full-screen LCD display that allows you to read the data easily and quickly. The digital angle ruler automatically turns off after 5 minutes of inactivity to save power. The digital protractor also has a zero button that can be zeroed at any position and is suitable for absolute and relative measurement.

【High Quality Material and Portable Design】: The thickened and widened ruler body is made of high-strength nylon fiberglass construction material, which has good hardness, wear resistance, no deformation, no scratches, light and durable 230mm, small, delicate design, easy to use and carry. Hanging hole design is convenient for hanging.