Kern dual range parcel scales de series kern de 150k20d the kern de 150k20d are dual range parcel scales that have been designed for use with parcels making them perfectly suited for use in warehouses dispatch departments and production facilities these large size square shaped scales are highly accurate flexible and come with several advanced featuresthe scales are battery operated making them portable the kern de 150k20d consists of a large stainless steel plate and a flexible dis