Led Sign 1 Led Sign 2 These are signs for use on police cars, for displaying messages to other car drivers. They can display up to 99 different messages, which are selected by a control unit inside the police car. The message display sign can be mounted on either the roof or parcel shelf .

Coastline Computer Consultancy developed the software for the message sign, and also the software for a remote control unit which allows the selection of messages.

Led Sign 3 Led Sign 4