Electronical device that relieves the presence of ice with measured relative humidity and air temperature. At corresponding conditions, the device turns on the flashing LED lights.
The device with Doppler radar technology signals one way access and turns on flashing LED lights, which warn the vehicle, that he is driving in wrong direction.
Noninvasive radar technology system used to signal and to show if the speed limit is exceeded. When the driving speed is higher than the set speed on radar, the lights start flashing.