Say When is an audible device that detects liquids and buzzes when the glass/mug is filled. This is ideal for individuals with vision difficulties and prevents over-filling. It is pocket-sized and easy to carry; it uses one 9-volt battery.
![Say When](https://sites.ecu.edu/ihat/wp-content/pv-uploads/sites/982/2016/11/SayWhen.jpg)
Say When is an audible device that detects liquids and buzzes when the glass/mug is filled. This is ideal for individuals with vision difficulties and prevents over-filling. It is pocket-sized and easy to carry; it uses one 9-volt battery.