The MIRT, or Mobile InfraRed Transmitter for Emergency Vehicles (Which is MIRToEV really, but oh well) is a traffic signal pre-emption transmitter. These have today been outlawed in the UK, making me wonder, will it work in the rest of mainland Europe? If so, I want one, and if so, what frequency does it broadcast on, as you must be able to make one for less than $ 399,.99!

Or maybe there’s just other manufacturers I can’t find right now…

Ah… From The Tech FAQ:

The transmitter is an infrared light which is flashed at the receiver. The transmitter inside the vehicle may transmit a low-priority signal (10 Hz) or a high-priority signal (14 Hz).