The KenBuster is a small box, about the size of a mobile phone. It has been built with the latest GPS (Global Position System) technologies that senses when your vehicle enters the congestion charging zone and then triggers a payment (where appropriate) to Transport for London.

The KenBuster knows if it's the right time of day and if it's the right day to make a Congestion Charge payment. You'll get a receipt by SMS and e-mail to confirm your payment. All that you have to do is purchase a unit and register your details with us and the KenBuster will look after the rest.