The invention relates to a pressure measuring tool (300) fixed to a connecting rod (118) arranged across a vein (110) of an aircraft engine, where the tool (300) comprises a sleeve (302 ) consisting of two walls defining a housing (306) receiving the connecting rod (118), where the housing (306) communicates with the outside through an opening (304) extending along the length of the sheath (302), where the sheath (302) has a span (332) which extends over the length of the sheath (302) and which has a plurality of cavities (335) distributed over the length of the sheath (302), for each cavity, an air intake comprising a passage (330) which opens at one end into the cavity and at one end into the vein (110), a printed circuit (336) which runs along the span (332), for each passage (330), a pressure sensor (334) placed in the corresponding cavity opposite the passage (330) and installed on the printed circuit (336), and a processing and / or recording unit for s data transmitted by the pressure sensors (334). Such a tool can therefore be easily installed and allows a large number of measurements in the secondary vein.
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