Circular Paper Chart, Compatible with Manufacturer Model Number Class 15, Class 22, Class 45, Class 60, Class 70, Classic Servoline, DR 4500, Compatible with Series Universal, Lowest Generic Number Recorded Not Applicable, Minimum DC Current Measurement Not Applicable, Product Type Circular Paper Chart, Strip Chart Length Not Applicable, Grid Color Black, Increment of Variation 100, Strip Chart Width Not Applicable, Highest Generic Number Recorded Not Applicable