Sensor Brush Spinning Device for VD-3 New. Here is the revolutionary Sensor Brush Spinning Device (SD.) The Sensor Brush SD provides the necessary static charge for the sensor brushes to properly remove dust and debris from the image sensor of your digital camera.Self-Cleaning & Self-Charging Spinning Device (SD) For Sensor Brush VD-3N NEWDue to problems related to liquid in canned air and flight restrictions we have developed a spinning device for the different Sensor BrushTM sizes which eliminates the requirement for canned air. Colors may vary at time of shipment Brush easily inserted into adapter and removed from adapter for swift cleaning (brush sold separately) Requires 2 in.AAA in. batteries (not included)WARNING: do not spin while on sensor