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JG-1 Type Curve Protractor


Product Overview

The JG-1 curve protractor is a miniature forestry measuring instrument primarily used to determine the basal area per hectare of standing trees in a forest stand. It features a novel, compact design, lightweight construction, ease of use, and automatic leveling capability.

Technical Indicators


1. The angle gauge rod is adjustable in length and features two scales;

2. The angular gauge constant K = 1, K = 2;

3. External dimensions: 140 x 14 x 41.5 (mm);

4. Net weight: 0.03 kg.