Specifically designed for real time detection of oil spills on water and ground surfaces in continuous automatic mode. It detects the specific fluorescence of oil caused by its exposure to certain UV light emissions, while not reacting to other materials that may appear in the observation area, in order to reduce false alarms. When the oil is detected, the system generates an alarm in real time, sent to the control room. It is designed for continuous unattended detection of oil leaks on the water or on the ground, in places such as industrial plants, oil storage terminals, waterways, harbors and other sites where environment is a concern.