Home About Us Resources Products Services Contact Us 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. QS4$4,460.00 Customers in State of Indiana: 7% sales tax must be charged unless all information in each section of ST-105 is fully completed by the purchaser. If you are exempt from sales tax, please fill out Form ST-105 at or before you place an order by clicking Indiana Department of Revenue General Sales Tax Exemption Certificate Please fax the form to (781) 609 2899 Thanks! updated: 08/10/2011 NANOLABTM as a trade mark was registered with “Registered, U.S. Patent and Trademark Office”.