The Etorus AF System consists of three components: The Vehicle Identification Unit is a device that is installed on each authorized vehicle and has a pre-programmed chip with a unique ID number, eliminating the need for a costly programming unit. The Hose Control Unit is a compact device built to withstand any environmental condition common to petroleum handling equipment. It is designed for direct attachment to the hose nozzle in a manner that will not interfere with refueling. The Hose Control Unit is installed on each individual pump and detects insertion of the fuel nozzle into the fuel inlet of a vehicle equipped with a Vehicle Identification Unit. The removal of the nozzle from the vehicle’s fuel inlet immediately terminates fuel flow.         The Pump Control Unit controls each pump hose independently. Whenever the fuel hose is inserted into the correct vehicle, the Hose Control Unit transmits the Vehicle ID via wireless communication from the Vehicle Identification Unit to the Pump Control Unit in order to obtain authorization before allowing fuel to be dispensed.