Based on the principle of the plumb bob, this tool is both an inclinometer and a level. It is accurate, sensitive and compact. The weight to establish the vertical and the fine-line indicator needle rotate freely on a micro ball-bearing center set within a housing that's oil-filled for damping.
The indicator reads accurately against degree markings on the outer rim. A built-in vernier lets you measure to 12' of arc (1/5°). The magnetic base allows you to attach the inclinometer to a steel bar or pipe for greater accuracy. Also, a steel ruler can be clipped onto the back to extend the base. It measures only 1/2" × 2 3/8" × 3".
A versatile system for levelling, setting, or determining slopes.