Palm Digital Thickness Gauge from 4SURE:
Professional diamond dealers and jewelers' choice
Auto power off to save battery
RS232 connection for computer connection Ask for connection device: $50.
Metric/Inch system interchange at any position
Zero setting at any position
With data output interface
Includes "count" and "Max" functions
Rests in your palm. 3-1/2" x2-1/2"
Includes a padded box and gift cover
12 months manufacturer's warranty
Complimentary weight estimation booklet.