The ornamental design for a manometer with cadenceindicator, as shown and described.
FIG. 1 is a front elevation view of the manometer with cadence indicator showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof.
The broken lines depicting exemplary pressure reading indicators in FIGS. 5, 6, and 7 depict environmental subject matter only and form no part of the claimed design.