Circular Paper Chart, Compatible with Manufacturer Model Number DTP, EV4, PR4, PR4-10, PW4, SK4, SL4, THP, THV, VFC21, 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 10, Strip Chart Width Not Applicable, Highest Generic Number Recorded Not Applicable, Maximum AC Current Measurement Not Applicable