Provides a fast, effective and easy-to-use method of measuring the ultrasonic activity generated in Ultrawave's ultrasonic baths. Assures the user that the bath is performing to its optimum by measuring the frequency and power levels generated within the cleaning fluid. A clean and easy alternative to the traditional foil ablation test. A stainless steel probe fitted with a specially designed ultrasonic receptor is connected to a hand-held meter with two LED displays. The probe is inserted into the cleaning fluid and the LED bar graph displays a measurement for the fluid's frequency and power levels. Indicator 1: Frequency 5-50kHz; indicator 2: Power 10-100%. Probe dimensions: 15 x 244mm long.