Liquid Pouring Aid
The liquid level indicator is a great tool for blind and low vision users!
Simply hang the handy liquid level indicator on the lip of your cup, glass or mug and pour with complete assurance. As the liquid reaches the top, a series of warning beeps indicates when to slow down.
The sound then shifts to a continuous tone when the top level is reached, indicating the cup is full and to stop pouring.
Requires one 9 volt battery (included).