The Winston Liquid level Gauge: The Winston Capacitive Level Gauge comprises a stainless steel tube with a concentric Teflon-coated wire. It calculates liquid level from the change in capacitance between the tube and the wire due to the dielectric constant of the liquid.
Mechanical Construction:
The electronics are housed in a small head box. This includes the terminals for external wiring and the switches used to configure and calibrate the gauge. An alternative construction is available with the terminals and switches in a separate control box. This version is intended for applications where the head box is inaccessible.