Kettles with water level indicator

Water level indicator

— a measuring scale with a pointer is included in some kettles to indicate the amount of water poured into the device. The scale can typically measure the water amount with an accuracy of 200 – 300 mL, although other options with varying degrees of accuracy are also available. This feature helps to prevent accidents such as turning on the kettle without enough water, and also allows users to accurately measure the desired amount of water to minimize waste and energy consumption.