Patent ID: 7304588

Claim:
An apparatus for monitoring the fluid fill level in a tank of the type having a fill level gauge with a rotatable magnet in a gauge head, comprising: (a) a transmission unit adapted to be disposed on or near the tank, the transmitter being constructed and arranged to detect at least the fill level of the tank and send information related to the detected fill level, the transmission unit comprising a Hall effect sensor which mates with the head of the tank fill level gauge and tracks the rotational position of the magnet in the gauge head; (b) a base unit adapted to be disposed at a predetermined location remote from the tank, the base unit being constructed and arranged to receive information related to the detected fill level from the transmission unit; and (c) a host unit adapted to be disposed at a location remote from the base unit and the transmission unit, the host unit being constructed and arranged to receive information related to the detected fill level from the base unit.