TDC8HQ Driver:

TDC8HQ Driver 1.6.0 Installer

Old version: TDC8HQ Driver 1.5.0 Installer

TDC8HP Driver:

TDC8HP Driver 3.9.5 Installer
The new driver 3.9.5 can only be installed on operating systems of Windows 10 / Server 2016 / Windows 11.

Old version: TDC8HP Driver 3.9.3 Installer

Please note:
The TDC8HQ is the newer TDC model. The 10 inputs are labeled A,B,1,…8.
The older TDC8HP model is labeled 1,…8,C,T.