A smaller, cheaper SunPass device went on sale Tuesday for drivers who want to pay tolls in advance and use the no-stop toll lanes on Florida's Turnpike and other toll highways.

The SunPass Mini is about the size of a credit card, and it costs $4.95 instead of $25 for the larger SunPass transponder.

However, drivers can't transfer the mini device from one car to another. If someone tries to take it off a car, it will break.

That's meant as a theft deterrent.