A system configured to execute a point measurement of acoustic pressure in liquids and gases, comprising: a metal hollow needle, comprising an apex; a miniature sensor, consisting of a multilayer ceramic SMD capacitor; a miniature connector placed at an extremity of the metal hollow needle opposite to the apex; a thin coaxial cable; an electrically shielded adapter consisting of: an input connector; a decoupling resistor; an output decoupling capacitor; an output BNC connector configured to be connected to a measuring, recording or evaluation device selected according to the application used; a miniature battery; and a switch wherein one end of the output decoupling capacitor is connected to the input connector and the other end is connected to the output BNC connector; wherein one end of the output decoupling resistor is connected to the one end of the output decoupling capacitor and the other end is connected to a common pole of the switch; wherein one pole of the switch is connected to the positive pole of the miniature battery and the other pole is connected to a ground terminal; wherein the negative pole of the miniature battery is grounded; and wherein the thin coaxial cable is configured to be connected with the miniature connector and the input connector of the adapter; wherein one lead of the SMD capacitor is conductively connected to the needle and the other lead of the SMD capacitor is connected to a conductor running through the cavity of needle; wherein the apex of the needle, the SMD capacitor and the connecting conductor are coated with a thin impermeable electrical insulating layer; wherein the extremity of the hollow needle opposite to the apex and the conductor are connected to the thin coaxial connecting cable; and wherein the thin coaxial connecting cable is configured to transmit a signal from the miniature sensor for further processing and to supply a necessary DC bias voltage from the miniature battery; characterized in that the multilayer ceramic SMD capacitor is placed on the apex of the metal hollow needle; said miniature sensor has sensing surface dimension of 1 × 0.5 mm, and a capacity of the order of ones of micro Farads; and the metal hollow needle has an outer diameter smaller than 0.5 mm. a metal hollow needle, comprising an apex; a miniature sensor, consisting of a multilayer ceramic SMD capacitor; a miniature connector placed at an extremity of the metal hollow needle opposite to the apex; a thin coaxial cable; an electrically shielded adapter consisting of: an input connector; a decoupling resistor; an output decoupling capacitor; an output BNC connector configured to be connected to a measuring, recording or evaluation device selected according to the application used; a miniature battery; and a switch an input connector; a decoupling resistor; an output decoupling capacitor; an output BNC connector configured to be connected to a measuring, recording or evaluation device selected according to the application used; a miniature battery; and a switch wherein one end of the output decoupling capacitor is connected to the input connector and the other end is connected to the output BNC connector; wherein one end of the output decoupling resistor is connected to the one end of the output decoupling capacitor and the other end is connected to a common pole of the switch; wherein one pole of the switch is connected to the positive pole of the miniature battery and the other pole is connected to a ground terminal; wherein the negative pole of the miniature battery is grounded; and wherein the thin coaxial cable is configured to be connected with the miniature connector and the input connector of the adapter; wherein one lead of the SMD capacitor is conductively connected to the needle and the other lead of the SMD capacitor is connected to a conductor running through the cavity of needle; wherein the apex of the needle, the SMD capacitor and the connecting conductor are coated with a thin impermeable electrical insulating layer; wherein the extremity of the hollow needle opposite to the apex and the conductor are connected to the thin coaxial connecting cable; and wherein the thin coaxial connecting cable is configured to transmit a signal from the miniature sensor for further processing and to supply a necessary DC bias voltage from the miniature battery; characterized in that the multilayer ceramic SMD capacitor is placed on the apex of the metal hollow needle; said miniature sensor has sensing surface dimension of 1 × 0.5 mm, and a capacity of the order of ones of micro Farads; and the metal hollow needle has an outer diameter smaller than 0.5 mm.