SmartTAG is the Malay acronym for “Sistem Membayar Automatic Rangkaian Tol,” or literally means Automatic Payment System For Toll Network.

It is a vehicle on-board unit that works in combination with the Touch ‘n Go card to allow user to pay toll with drive-through convenience.

SmartTAG transmits information between the Touch ‘n Go card and the toll system via infrared at the dedicated lane. The system can detect a vehicle as fast as 40 milliseconds and vehicle throughput is 4 times faster than cash lane.

At a smaller toll plaza where there is no SmartTAG lane, user can take out the Touch ‘n Go card from the SmartTAG and use it at the Touch ‘n Go lane instead.