The Data-Link kit consists of a communications cable (galvanically isolated), a converter and the Data-Link software. With this kit you can connect your BMV-602 Battery Monitor to your Global Remote. This connection allows the Global Remote to log data from the BMV-602 Battery Monitor to a website through a GPRS connection. The use of this website is free of charge. The free software which is supplied with the Data-Link kit enables you to download and process just about any aspect of your battery and system performance, including charge/discharge curves.