When it comes to essential items at the farmers market, having reliable and accurate commercial scales ranks right at the top. A set of accurate retail scales is very important to the profitability and the image of your produce stand.  Some of the better known brands of commercial scales include Ohaus, Tor Rey, CAS, Rice Lake and Ishida. These scales also feature the NTEP Approval Certificate of Conformance Number or as it's better known for, CoC#.