Salter High Capacity Digital Kitchen Scale This scale features the innovative touchless tare function; just wave a hand over the sensor to zero out the scale. An Add and Weigh function allows for measurement of multiple ingredients in the same bowl saving time on washing up. The Aquatronic function allows you to weigh both dry and liquid ingredients. The 3 required AAA batteries come included in the package so there is nothing else to buy. This item comes with a 5-year limited warranty.