"Accuremote Digital Inclinometer Magnetic Angle Level Protractor Gauge Product description: Portable Digital Angle Gauge with Magnetic Base.Get precise angle readings. Large LCD display reads upright at any angle. Digital angle gauge/inclinometer is great for precision angle measurements. The magnets in 3 facets allow you to attach the cube to any steel object. Features: Super large reversible LCD display Tracing absolute level Measure relative bevel Embedded strong magnets on three sides Measure range: 360 degrees (4 x 90) Resolution: 0.05 degrees Accuracy: +/- 0.2° Standard 9V battery (250hrs) Tangent tilt rate %, shows tilt in % "