The sensor is offered in two versions called Road eye Short Distance SD and Road eye Long distance LD respectively. The Road eye Short Distance SD is primarily thought to be placed on a vehicle for monitoring the road surface. The Road eye Long Distance LD is primarily thought to be placed on the road side for monitoring the road surface at the sensor site. The information from the sensors can be used for warning drivers during slippery road conditions. Prototypes of both versions have been tested since the 2008 winter season.
