Probe: The probe would be the element that makes contact with the premix fluid. Connecting 1 end of your probe into the transducer results in it to vibrate at the required frequency. The vibration with the probe is handed to the premix fluid, which then develops cavitation. At Cyclotherm Boilers, https://medicalfridgeforsalesouth10997.kylieblog.com/30301936/the-5-second-trick-for-laboratory-equipment-manufacturers-in-johannesburg