To be considered legal for trade, a scale must fulfill certain standards established by the National Type Evaluation Program (NTEP). The NTEP evaluates the performance, features and options, and operating characteristics of the scale based on its set of applicable standards. Some tests include weighing half of the scale's proposed capacity over 100,000 times to check accuracy. Having passed the necessary regulations, the scale is awarded a Certificate of Conformance, and only then can be advertised as Legal for Trade.
For commercial locations that calculate sale price based on weight, such as delis, markets, bakeries, or butcher shops, the best food scale is definitely a legal for trade scale. Keep in mind that any scale used with food must be
NSF certified.
What Is a PLU?
PLUs, or Price Look-Ups, allow customers to take items like produce or meats and associate a specific dollar amount per pound to the item. For example, if you create a PLU for apples, the word "apple" and its price per pound will populate on the screen when you press the corresponding pre-programmed number on the scale.
Legal for trade scales have varying PLU capacities. Some scales offer 10 programmable PLUs, while others can hold up to 4999 different programmable number combinations. Whatever the range capacity of your scale, PLUs will save you valuable time since you no longer have to manually type the price and name of the product every time you make a sale. Instead, you simply press the number associated with the product.