DIGITAL POTENTIOMETER – GUPTA BRAND 5000LT32 Posted on March 3, 2017September 21, 2021 by admin For Rdox Potentail Measurement 3 1/2 Digit LED Display , Range 0 +_1999 mv. Resolution 1 mv .Accuracy +_ AC Supplied With O.R.P. Electrodes, Electrode Stand & Dust Cover.