"The Dune compact scale offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. Auto Shutdown Yes, Battery Included No, Adapters Included Yes, Capacity lbs. 4, Style Portable scale, Battery Type AA, Platform Size L x W in. 5 4/5 x 5 4/5, Power Source Battery or electric, Measures Pounds, ounces, grams, Material Type Plastic, Display Increments 1 g, Display Type LCD. Simple 3-button controls Low battery indication Advanced overload protection prevents damage to internal components"