Cirrus SR22 Pilot Operating Handbook page 383

Cirrus Design Section 9
SR22 / SR22T Supplements
Fluid Quantity Sensing
Serials w/ Perspective Avionics: Fluid quantity is measured by a float
type quantity sensor installed in the deicing fluid tank.
System Indicating
Serials w/ Perspective Avionics: System Indicating is displayed as a
dial gauge and text in the lower left corner of the MFD ENGINE page.
A dial gage marked from 0 to 3.5 U.S. gallons, in 0.5 gallon increments
indicates the tank fluid quantity. Fluid quantity is also displayed
numerically below the dial gauge in 0.1 gallon increments.
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Revision 09: 12-17-10