The present invention relates to probes useful for the detection and measurement of target nucleic acids, as well as compositions and kits containing such probes. Refrigerant is supplied via a supply passage, and released via a bleed passage. The top board portion supports the audio apparatus. The power supply system may be a battery. sector antennas, can thus be combined together and fed to just one multi-carrier receiver, so that hardware requirements are significantly reduced. The protective sheath may be snap fit onto the guide catheter.