The Presidium Gemstone Gauge is the industry's first electronic gemstone gauge and utilizes solid-state electronics to accurately measure up to .01mm
Features a clear and visible high-tech digital display for ease of reading measurements. Its touch button zeroing allows the convenience of resetting to zero at any measurement point. A high setting attachment allows measurement of mounted gemstones with ease. Includes: digital readout for instant accuracy, reads up to 25.0 mm with .01mm accuracy, one-button round diamond weight estimation, high setting attachment, push-button zeroing, auto shut-off, weight estimator booklet, and 1 year warranty. A replacement attachment pin (GA701PIN) can be purchased separately here.
Takes battery model: ECR2032