Chinese Scales

A technical description of the Chinese scale protocol and their operation.


OpenDRO Users Guide

The official User's Guide for OpenDRO.  This serves as the User's Guide for both the DRO-550 and the DPU-550.


DRO-350 Users Guide

The official DRO-350 User's Guide for software release 4.


The Chinese Scale Experience

Bill Havins, a user of the ShumaTech DRO-350, wrote a great article on his experiences using Chinese scales.  The artice covers where to purchase Chinese scales, their installation on equipment, and general troubleshooting.