In each of June's feet are weight sensors that June can use to get an accurate weight reading of items placed on top and inside. To ensure accuracy, make sure June's feet are on an even surface. June will give you unit measurements of mass in fractions of a pound, (e.g. 2 3/8 lb), pounds, ounces (e.g. 2 lb 6 oz), or kilograms (10g units up to 1 kg). The scale can be zeroed out as the weight sensors actually return the fully loaded weight, including the weight of the oven back to zero.