EZ Fill Liquid Level Indicator

Pouring hot liquids in particular is much easier with a liquid level indicator. Position the device on the edge of your cup or glass, so that the two prongs are inside the vessel. Once the liquid you are pouring makes contact with both prongs, the unit buzzes to alert you that the liquid level is about one inch from the lip of your vessel. The liquid level indicator measures approximately 2 1/2 × 1 1/8 × 1 1/4 inches and features two prongs. It uses three 1.5V (LR44) button batteries (included).