SoftPot Potentiometer – The Original
SoftPot – The Original
The SoftPot potentiometer is currently a medical standard for multinational companies such as Varian Oncology, Siemens, and Baxter Healthcare, while also being used in many industrial applications.
Click on above video to view a SoftPot demonstration.
The SoftPot membrane potentiometer acts as an infinitely variable analog voltage divider. Spectra Symbol designed the SoftPot to fit almost any configuration, whether linear or rotary, with active linear lengths up to 2,400 mm.
SoftPot sensors are available
Spectra Symbol manufacture:
Standard (available on stock) and
custom series
SoftPot – standard rectilinear sensors
Length [mm] – 50 (1.969"), 100 (3.937"), 170 (6.692"), 200 (7.874"), 300 (11.811"), 400 (15.748"), 500 (19.685")
Resistance – 50-300mm: 10 kOhm, 400-500mm: 20 kOhm
Res.-Tol. – ±20%
Lin.-Tol. – ±3%
Temp. – -40°C..+50°C
SoftPot – standard rotary sensors
SoftPot – standard rotary sensors
Diameter [mm] – 46 (1.811")
Resistance – 10 kOhm
Res.-Tol. – ±20%
Lin.-Tol.. – ±3%
Temp. – -40°C..+50°C



