Digital Pocket Gemstone Gauge

The most popular, electronic pocket-sized digital gauge. It is battery operated, provides extra precision and includes a gem weight estimating book and carrying case. Used for estimating the weight of any shape stone (mounted or loose). 0.01 mm accuracy. Measuring range/units: 0.01 mm to 25.00 mm / 0.0005 in to 1.0000 in. Compact pocket sized design. Large LCD display. Locking set screw. Hardened steel measuring jaws. On/Off power control. LR44/357 button cell battery powered. Zero resent button. Gem weight estimating conversion booklet, battery and high setting attachment included. Comes with protective premium storage and carrying case. 1 year warranty. Manual.