VEVOR Digital Rotary Viscometer, 10-100,000 mPa.s(cP), ±2% Accuracy, 100-240V Digital Rotational Viscosity Meter with 4 Rotors and Temperature Probe, LCD Display, Lab Viscometer for Fluid Testing

This VEVOR digital rotary viscometer displays viscosity in mPa·s (cP) only; it does not support direct SSU readout. For 90 SSU (Saybolt Seconds Universal), convert it to approximately 18.5 cP / 18.5 mPa·s (at 40°C, typical for oils). To measure: Choose rotor & speed for ~18.5 mPa·s (e.g., Rotor 1, 60 rpm). The LCD will show the value in mPa·s; match it to the converted 18.5 mPa·s for 90 SSU.