Cruise timber with precision using the Jim Gem Rectangular Cruising Prism featuring a 10 BAF (Basal Area Factor) and clear English scales. As Jim Gem’s most popular prism shape, this rectangular design provides a narrow, sharp image, ideal for achieving accurate results even in dense forest stands.
Built for professional use, this prism is accurate to ±1% of the rated BAF and measures 20mm x 40mm. It comes complete with a durable leather case to protect your equipment during demanding fieldwork.
Key Features:
Rectangular prism (20mm x 40mm) design for focused, narrow imaging
10 BAF with English scales for timber cruising accuracy
Precision crafted to ±1% accuracy of rated BAF
Produces a sharp image suited for dense timber environments
Includes a protective leather case for durability and portability
Essential tool for foresters, surveyors, and environmental professionals
Rely on Jim Gem’s trusted craftsmanship for sharp, accurate field measurements with this highly effective rectangular prism.