Cap-Level® is an excellent choice for continuous level measurement. Cap-Level®uses the proven method of capacitance change to determine the level of product in the vessel. This transiates into an accurate and dependable measurement device for your process. Simply stated, as the level of product in the vessel changes, the capacitance between the probe and the vessel wall also changes. The solid-state electronics of the Cap-Level® continually measures and compares this change to a very stable reference circuit, and provides accurate and dependable output signal (4-20 mA) proportional to the vessel contents. The " industry standard" 4-20 mA output is provided with a selectable dampening function to stabilize readings where severe agitation is present. Simple zero and span adjustment make calibration easy. The probe configurations and materials offered allow you to custom fit Cap-Level® to your application. Cap-Level ll is a 4-wire transmitter with 120 or 240 VDC while the Cap-Level llA is a 2-wire transmitter with 24 VDC.