PCE-RVI 6 is a Krebs viscometer or Stormer viscometer used in industrial and research applications to measure Krebs Unit viscosity according to the ASTM D562, ASTM D1131 and ASTM D856 standards. Featuring an integrated temperature sensor to help ensure accurate test results, this Krebs Stormer viscometer displays measurements in Krebs Units (KU), grams (g) and centipoise (cP).

- Rotational speed: 200 rpm
- Viscosity range: 40.2 ... 141.0 KU / 32 ... 1,099 g / 27 ... 5,250 cP (mPa.s)
- Accuracy: ±1.5 % full scale (FS)
- Includes 800 ml stainless beaker
- IR sensor for temp integrated