The CAS SW-1 series portable electronic scale is battery operated and NTEP approved and is ideal for use as a food scale or for legal for trade retail weighing. Compact in design and easy to use portion control scale for use in a variety of applications. AC or battery operated, NTEP Legal for trade. Great for use in restaurants, kitchens, specialty stores, farmer's markets and more! This could even be used as a produce scale. This scale is available in four different capacities so there is sure to be a model that will work perfectly for your weighing application.