PCE-RVI 4 VP20 is a rotational viscometer used in industrial and research applications to measure viscosity according to the Brookfield method. Featuring a simple, lightweight construction for ease of portability, this digital viscometer can be used in the laboratory or in the field. This viscometer is delivered with spindles R2, R3, R4, R5, R6 and R7 and displays measurements in millipascal-second (mPa.s).

- Rotational speed: 20 rpm
- Viscosity range: 200 ... 200,000 mPa.s / cP
- Accuracy: ±2% full scale (FS)