Bests & Worsts Reviews from Amazon

The advertised specifications are an outright lie. This is advertised as having "Cleaner Power: 240 watts" at a frequency: 40,000 Hz. As I am an electrical engineer and a self proclaimed nerd I like to test my new equipment. The specifications are way off from the advertisement. First I checked the output with my frequency counter then just to double check, I hooked my oscilloscope directly to transducer output under load, the measure frequency was only 30,000 Hz (30 kHz) not the advertised 40,000 Hz (40 kHz). The advertised transducer power is 240 watts at 40 kHz; I measure 190 watts @ 30 kHz The advertised heater power is 250 watts; I measure 180 watts. This is a cheap Chinese counterfeit of other much better units. If I could give this zero start I would. I am returning this unit today. My suggestion is stay away from this.