Circular Paper Chart, Compatible with Manufacturer Model Number 390, 392, 394, Compatible with Series Universal, Lowest Generic Number Recorded 0, Minimum DC Current Measurement Not Applicable, Product Type Circular Paper Chart, Strip Chart Length Not Applicable, Grid Color Black, Increment of Variation 2, Strip Chart Width Not Applicable, Highest Generic Number Recorded 14, Maximum AC Current Measurement Not Applicable, Maximum AC Voltage Measured Not Applicable