@tsah
I have no idea what tech/waves they are using but I think its called Photo Radar...
The only thing I know is that they are very sensitive to light and can't work properly in low light as the display brightens up... thats the reason they can't use it in night or evenings....
The model is a mixture of different products (lcd from NecVOx)..... but as a unit its called Discovery 2000 Ultrlyte Compact Laser....
here is a picture I took during our Islamabad Grand Finale....