Using Event step with RFID Scanner

We have a Flow where users can scan a RFID tag. We are currently using a User Step with a Text Input for the user to scan in the value. This is working ok.

One concern is that users can manually edit this text input. We were trying to see if the Event step for type Scanner can be used for RFID readers as well? When I tried to set this up, I couldn’t get it to work. Is the Event step for scanner only working for Barcode scanners? Is there a way to use this for RFID scanners as well?

Any suggestions on how we can scan a RFID value to a variable without using a user editable Text Input in a User Step?