The same proven TTR test circuitry that is in the existing TTR300, TTR310 and TTR330 can be found in the latest model. The primary differences between the units in the range are user-interface related and data storage capability.
Here's a quick look at some of the primary features of the NEW TTR320:
Display: 5.7 in. color, icon based
Data Storage: USB flash drive; >100,000 files
Data Transfer to PC: USB flash drive
Print: 4 in. strip via serial
The four products in this series span from the top-end model (TTR330) to the remote controlled "black box" TTR300.