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Some of our units have a device, that with a flick of a switch in the responding unit, will change the traffic light so that it's green as the unit approaches.
I've heard about this before. I've also heard of lights that change when someone flashes their brights several times.
Anyone else see this in the field?
I've heard about this before. I've also heard of lights that change when someone flashes their brights several times.
Anyone else see this in the field?