Get GEM-Selektor package!


GEM-Selektor v.3 (GEMS3) is a program package for thermodynamic modelling of aquatic (geo)chemical systems.

The GEMS3 package is distributed free of charge to registered users affiliated to non-profit educational and research institutions, for educational and research purposes only, subject to the Terms and Conditions of Use.

Use of GEMS3 in any commercial activity (not education or research) requires a written agreement with the vendor (Paul Scherrer Institute).

The currently available trunk variant of GEMS3  is provided without source code, in the form of an executable program with built-in thermodynamic database and help database.

GEMS3 runs under Windows, Mac OSX and Linux desktop PCs. See the GEMS3 Technical Info page for the IT-related information and for the installation instructions.

We would appreciate a non-compulsory registration of your name, affiliation, and e-mail,  as well as OS and area of potential applications.

Click here to register and download GEM-Selektor package

Currently available: GEM-Selektor v.3.3.5 rev. 3cecb08.8df0cc1 (bugfix release).

Enjoy GEM-Selektor v.3!


Last updated:  07. 04. 2017

Copyright (c) 2003-2017  GEMS-PSI Development Team.