  
The QS4 is a 600W, 20kHz ultrasonic probe for the dispersion of nanotubes, nanowires, and nanoparticles in liquids. A user can save 10 program sequences, or operate in a manual mode with adjustable pulse length, output amplitude, and time. The unit features a touch screen display, overload protection, self diagnostics, and is self tuning. The QS4 system comes with a 6 ft cord to allow the transducer and probe to be placed in a fume hood or glove box, while the generator remains outside.
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