Fill your cup with greater confidence using the Audible and vibratory Liquid Level Indicator. Simply place it on the side of a cup and a series of audible beeps and vibrations will let you know when the liquid nears the top.

Let the metal prongs give off an intermittent beep and series of vibrations when your cup is nearly full followed by a faster bleep and continuous vibration when it has reached its limit. There's magnets built in too for easy storage on your fridge door!