ERM III is a portable desktop scanning device that interfaces to a laptop or desktop personal computer. It is capable of viewing the barcode and address block of letter-size and flat-size mailpieces.
The ERM III measures optical properties read by USPS automation equipment. It examines finished mailpieces bearing address information as well as the pre-production materials intended for subsequent use in mailpiece construction. Primarily, the ERM III measures the following:
The meter determines whether there is sufficient contrast between the printed character/barcode and the envelope background so that USPS automation equipment can successfully process the mailpiece.