Mechanical Liquid Indicator for People with Visual Impairment

The Liquid Indicator is a gadget that detects the level of liquids in a cup or container. It helps people with visual impairment who can't see the level of liquids in the containers.

Part of the final product is a ping-pong ball, that works as a float. The user simply attaches the indicator to the rim of a container and puts their thumb over the hole on the top, while pouring the in the liquid. When the ball rises with the liquid surface, it touches the user's thumb and indicates the level of the liquid.

Compared to the standart indicator, the mechanical one can be washed in a dishwasher and it doesn't need batteries.