Du nouy platinum ring method; Manual, digital, PC control modles; ISO/1409, ASTM D1417; Best quality, most ... holding function; Automatic one key adjust Zero point function 4, LCD Digital display the load;5, Measuring table auto moving.Specification: ModelJZYW ... , Pothook, Glass cup, 500mg standard weight, manual etc. interface tensiometer/digital surface tensiometer/Du nouy ring method test