Pressure measuring device, comprising a connector extending along a longitudinal direction around a central longitudinal axis, the connector comprising a first longitudinal end intended to be fixed to an element containing pressurized gas, and a second longitudinal end provided with a diaphragm intended to be subjected to the pressure, the diaphragm comprising a pressure sensor of the piezoelectric type generating an electrical signal representative of the pressure measured, the pressure sensor being connected to an electronics board comprising electronic logic for processing the electrical signal of the sensor, the device furthermore comprising a transmission/reception antenna of the radiofrequency type fitted on the electronics board in order to receive and transmit data from and to the electronic logic, the electronics board being housed in a protective casing fixed to the connector, wherein the antenna is located on or adjacent to an axis passing through the central longitudinal axis of the connector.