Scott Aerator's fully programmable oscillator attachment is a great time-saving option for our dock-mounted Aquasweep or De-icer. We pre-program the Oscillator to rotate your dock-mounted unit in 20-degree increments every 20 minutes. You set it for any radius you want, up to a full circle. The speed and the degree of motion can easily be adjusted to your requirements. The Oscillator will help keep larger areas free from ice when used with the Dock Mount De-Icer, and will assist in moving more bottom debris when used with the Aquasweep. The Oscillator can be added to in-place Aquasweep and De-Icer models. Comes with a two-year warranty. Requires 110-volt power.