Model POC 20 Resistance range  100 ohm bis 1 Mohm el. angle 270° mech. angle 275 °  Linearity +/- 2 % Rotational life 50'000 Cycles           Model POC 90 W Resistance range  100 ohm to 1 Mohm el. angle 300°  mech. angle 305°  Linearity +/- 3 % Rotational life 5'000 Cycles           Model POC 90 R Resistance range  100 ohm to 1 Mohm el. angle 300°  mech. angle 305°  Linearity +/- 3 % Rotational life 5'000 Cycles