Dual function with strong magnet--As a true (absolute) digital level and electronic inclinometer/protractor, you can set or check the relative angle between the surfaces. In addition, the magnetic base is firmly attached to the ferrous metal , such as pipes, pipes, steel structure frames, metal manufacturing, etc. High --The accuracy is ±0.1° at 0° and 90°, and the accuracy is ±0.2° at 1-89°; the angle and slope readings are displayed in degrees, slope IN/FT, mm/M and slope percentage . perfect for roofs, tracks, ADA ramps Large and bright green LED display with audio indicator--This level meter has a large, bright LED display that can be turned over, so you can easily stay overnight even in the darkest space Read the measurement result. In addition, we also designed a digital level through the audio indicator function. Sturdy workplace--Sturdy I-steel aluminum frame, magnets, rubber end caps and IP54 dust/water splash protection, can be used in harsh working environments V-groove magnetic base--The V-groove magnetic base is firmly attached to ferrous metal surfaces, such as pipes, pipes, steel frames, and metal manufacturing., Manufacturer: Aundhegrtt