The Spherical Densiometer Model A is a professional forestry instrument designed to accurately measure forest canopy and overstory density. Widely used by foresters, environmental researchers, ecologists, and students, this handheld tool provides reliable canopy coverage readings in forest and vegetation surveys. Crafted with a high-quality wooden case, the densiometer features a convex spherical mirror engraved with a precise grid pattern. The mirror reflects the overhead canopy, allowing users to estimate canopy closure by counting grid intersections. A built-in compass ensures correct directional readings for accurate and consistent measurements.