A pressure probe for detecting clathrates includes a probe wall defining an inside area. A window is arranged in the probe wall. A device including a circuit board having a surface is arranged below the window. A permittivity sensor and temperature sensor are arranged on the surface of the circuit board and in thermal contact with each other and with a temperature control device. An insulating layer is disposed on the surface of the circuit board over the permittivity sensor and the temperature sensor. The window includes a part of the insulating layer.