Features: includes computer interface with software Reads cavitation energy in watts db/m Detect standing waves Detect malfunctioning transducers Discover areas blocked to ultrasonics Profile tanks Adjust power intensity for each tank Monitor ultrasonic tanks for correct operation Works on 20 / 40 / 80 / 120 / 170 / 200 / 300 khz The model l-2000 ultrasonic power meter consist of a b precision model 5390 true rms dvm, a coaxial adaptor and a q-1000 quartz probe. The meter has been pre calibrated at the factory and is accompanied by a calibration certificate.