A lid for a beverage container that firmly and sealibly engages commercially available beverage containers and displays and tracks the volume of fluid that passes through it, the lid comprising:
- a. a watertight outer housing, the outer housing comprising a housing cover, a transparent display window and a reset switch;
- b. the housing cover comprising a top portion, a bottom portion, an inside surface, an outside surface, a top opening, a bottom opening, a window opening and an opening that houses the reset switch, the inside surface terminating at the bottom opening of the housing cover;
- c. the transparent display window affixed to the housing cover's window opening in such a way that a user can see inside the housing cover while creating a watertight seal between the housing cover and the window;
- d. the reset switch extending through the opening in the housing cover, the reset switch being interfaced with a CPU;
- e. the outer housing houses a drinking nozzle assembly, an inner watertight housing assembly, an electrical assembly and a display readout;
- f. the drinking nozzle assembly comprising a drinking nozzle and a hollow drinking nozzle insert, the drinking nozzle insert being firmly affixed to the inner watertight housing assembly, the drinking nozzle being movably affixed to the drinking nozzle insert, the drinking nozzle extending through the top opening of the housing cover when upward pressure is applied by a user;
- g. the electrical assembly comprising a PCB main board, one or more sensor chips, a powering means and the display readout, the PCB main board comprising a CPU, the sensor chips being electrically interfaced with the CPU, the display readout interfaced to the CPU and affixed so that it is visible from the display window;
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- h. the inner watertight housing assembly comprising a wheel well portion and an engaging portion, the wheel well portion comprising a first half and a second half, the first half and second half being engaging each other in a watertight manner, the first half and second half each comprising an inner side and an outer side, the first and second halves each comprising a depression in the inner side, a water wheel, the water wheel comprising three or more curved blades and an axis and being a diameter that fits inside the wheel well portion in such a way that it can spin freely about the axis, the water wheel comprising one or more magnets affixed to one or more of the blades, the sensor chips being affixed to the outer side of the wheel well portion and positioned where the sensor chips can track every time a magnet passes a sensor chip, the engaging portion depending from the wheel well portion, the threading portion comprising an interior surface and an exterior surface, the interior surface comprising an engaging means capable of engaging to a mouth of a commercially available beverage container.