The Benchmark Scientific DP0150E Pulse 150 Ultrasonic Homogenizer with Controller, Transducer, 6mm Horn, and Soundproof Enclosure, 230V uses cavitation and ultrasonic waves to break cells in suspension, shear DNA and prepare samples for ChIP assays. With up to 150 watts of power, the unit can process samples from 0.1 ml to 150 ml (with the appropriate horn). All components needed for homogenization are included with the DP0150-E - a controller, transducer, temperature probe, 6 mm diameter titanium alloy horn and wrenches to change horns; a soundproof box with sample platform also comes standard. The box helps to reduce the noise generated by the sonicator. The 6mm horn is appropriate for volumes from 10ml to 100ml. Optional horns are available for other volumes (not included). Operating parameters are set and viewed on the DP0150-E's 4.3 in. color touch screen. Pulsed operation is easily programmed, as is the power level. Twenty programs can be stored in memory and recalled as needed. Alarms alert the user to over temperature, over/no load, and expiration of time.