Concave Model C
Helpful when establishing spacing standards in forest thinning and determining light requirements for regeneration. Both models feature a mirror reflector engraved with a cross-shaped grid of 24 quarter-inch squares to delineate a plot overhead. Slightly offset convex model when using so your head does not appear in grid. Walnut instrument case is 3” x 3”.
- Forestry Suppliers Spherical Crown Densiometers – Concave Model C
- Operating instructions