No, with the Go 2 you cannot switch directly between different cost units using an RFID card, as with the Zaptec Pro. The Go 2 offers RFID for locking/unlocking and user-based evaluation of charging processes in the app with MID-compliant meter for billing to the exact kilowatt hour, especially for company cars. It is suitable for separate billing of company and private charging (e.g. company vehicle vs. private car) via the app documentation and OCPP compatibility with backend systems, but no automatic cost unit change by card is described. Since you already have a separate electricity meter, this could make billing easier, but for exact multi-user cost unit functions, see the Zaptec Go 2 user manuals or ask Zaptec support.