A gauge and display

An apparatus for measuring and displaying the fluid level in a tank is disclosed. The apparatus has a non-electric gauge for measuring the fluid level in the tank, and the gauge has a gauge display for displaying the fluid level in the tank. Electronic means associated with the gauge are provided for (i) generating fluid level data related to the fluid level in the tank or changes therein, and (ii) wirelessly transmitting the fluid level data to a receiver. There is a receiver display associated with the receiver for displaying fluid level based on the fluid level data received by the receiver. - Fig.r. I