Say When Liquid Level Indicator - 9 volt
Never again risk the embarrassment and inconvenience of overfilling your dinner glass or coffee mug! Just hang this handy unit on your cup or glass lip and pour with complete assurance. Say When will sound to alert you when liquid level nears top.
Pocket sized, 2-5/8" for convenience. Uses 9-volt replaceable battery.
Mug not included.