Slope Meter “No. 1” is used for all slope and crown construction. The figures shown on the scale represent slope. For example, when the indicator ball is over number “8”, it indicates an “8-to-1” slope. The small triangles (shown between 0 and 8) represent degrees, for reference purposes. Slope-Meter “No. 1” is widely used on motor graders, bulldozers, and similar equipment.