Double Convex Lens, 200mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs auspowers_batchone Unique Design: The blades are

Unique Design: The blades are bound within a chromed-blade protector to prevent loss of individual blades

Included: 1/4"-20 x 3/8"

Many anemometers have digital readouts and can display air velocity readings in different units of measure

16 Inch( H x OD x ID) Weight: 9g Brass Gear Wheel: Modulus:0

Double Convex Lens, 200mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs auspowers_batchone Unique Design: The blades areDouble Convex Lens, 200mm Focal Length, 3" (75mm) Diameter Spherical, Optically Worked Glass Lens Ground Edges, Polished Great for Physics Classrooms Eisco Labs Our mission is simple; to be TRUSTED by educators, researchers, and scientists throughout the world to design, manufacture, and DELIVER products that allow LEARNING and the development of scientific knowledge. For over 50 years, Eisco Scientific has been manufacturing and selling quality