Here you can download the appropriate software or app for your TFA product.
Software
![Software TFA Primus und Opus](https://www.tfa-dostmann.de/wp-content/uploads/RTEmagicC_primus_und_opus_klein.jpg.jpg)
PC Software Primus and Opus
Primus (Kat.Nr. 35.1099.IT, from May 2010 and newer)
Opus (Kat.Nr. 35.1112.IT)
(Windows only)
![Software Primus](https://www.tfa-dostmann.de/wp-content/uploads/RTEmagicC_download-primus_01.jpg.jpg)
PC Software Primus
Primus (Kat.Nr. 35.1099.IT, production date November 2009)
(Windows only)
PC Software Nexus, Sinus and Meteotime Duo
Nexus (Kat.Nr. 35.1075)
Sinus (Kat.Nr. 35.1095)
Meteotime Duo (Kat.Nr. 35.1100)
(Windows only)