?Durable and High-precision?The digital angle gauge is certified to IP54 dust and water resistant standard. And the ABS plastic body makes it more durable. Measuring range:4*90, Resolution:0.05, Accuracy:0.2, Repeatability:0.1. ?Backlight LCD Display?High visibility reverse contrast display improves visibility in dimly lit work environments.1.5-inch LCD display can provide you accurate, immediate and clear measurements. Also the display will be inverted automatically when the tool is upside down. In addition, this digital level will automatically turn off after 3 minutes of no operation to save battery. ?2 Measurement Modes Units?There are 2 measurement modes: absolute measurement and relative measurement , you can easily check the absolute or relative angle with a short press of the "ZERO" button.Two units: short press the "HOLD/Tilt%" button, the display will hold the readout date. Long press the "HOLD/Tilt%" button, the display will switch between angle and Tilt%. ?Strong magnetic?The strong magnetic base makes various stick-on measurements simple and accurate. The digital angle finder is attached to conduit, pipes, saw blades, vents, ducts, and other ferromagnetic surfaces. ?Wide Applications?This angle measuring tool can be used in applications such as woodworking, bending conduit, installing electrical panels, and working on machinery. ?Notice?If the digital angle gauge is used in an incorrect position (e.g. tilts diagonally over 30 degree), display will tell ERROR. So we need to make sure that the angle gauge is used in a correct position.