Unlabeled white label roll designed for marking Siemens ET 200S controllers. The labels can be customized using compatible marking systems such as THERMOMARK ROLLMASTER 300/600, THERMOMARK X1.2, THERMOMARK ROLL X1, THERMOMARK ROLL 2.0, or THERMOMARK ROLL. The labels are mounted by snapping into a marker carrier and feature two sizes: one with a 50 x 12.8 mm lettering field and another with 27.5 x 12.8 mm. The package includes 1,000 individual labels.