Mobius is Datalink's Windows client software, providing GPS tracking and two-way messaging over a variety of wireless networks. On screen maps and navigation are available through the use of Microsoft MapPoint. An external GPS source is required for GPS tracking.

Mobius provides field workers with real-time two-way text messaging and file transfers, plus a high level of safety with a function key panic trigger. Emergency alerts are sent to DataGate, where they can be relayed to monitoring desks or sent via SMS/email messages.
Mobius allows the use of multiple networks with automatic selection. As an example, if the vehicle travels outside the local wireless network coverage area, Mobius will switch automatically to satellite if a satellite transceiver is attached.