It has a wide range of uses and is suitable for indoor decoration of pipeline construction, building measurement and canal engineering. It is easy to enlarge the dial scale and read clearly. The slope measuring inst ent is simple to operate and convenient to use. Equipped with slope and angle comparison table, convenient. Portable size, easy to cooperate with other measuring tools, and expand the measuring range. Name:professional inclinometer measuring tool ruler Measuring range:130-0-130 (50-90-0-90-50) 1 minute to 8 minutes (0.5 minute scale) 10%, 12%, 15%, 18% and 20%. Type:A:Without magnet Colour:As Shown Material:Metal+Plastic Package Contents: 1 * Measuring ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.