Mechanically operated inclinometer. No batteries or external power required. This mechanical design provides reliable, maintenance‑free operation in a wide range of environments. Key benefits - Battery-free and maintenance-free operation for dependable use on any job site. - High accuracy with a tolerance of +/- 1 degree, suitable for precise measurements. - Portable and lightweight: compact, easy to carry in a toolbox, bag, or pocket. - Large measurement range of 0-90 degrees with a clearly marked scale for easy reading. What it does - Measures angles from 0 to 90 degrees with clear, easy-to-read markings. - Designed for quick, on-the-spot angle checks without power. Use scenarios - Carpentry and cabinetry: ensure level shelves, frames, and doors during installation without power tools. - Wall mounting and fixtures: verify level installations for shelves, countertops, and wall-mounted units. - Equipment setup on site: align machinery, posts, or mounts quickly when power sources are unavailable.