Check the listing for details. Dynatek Dyna Shift Minder Light Lite DSL-1 RPM Dyna. Condition: New. Listed at 150.99 USD. Dynatek Performance Dyna Shift Minder Light Part Number: DSL-1 The Dyna Shift Light is activated by the Dyna Shift Minder Control Module, which is a small electronic box which monitors the engine rpm in order to trigger the shift light at precisely the right time. The Shift Minder Control Module has been designed with extremely accurate circuitry to insure triggering accuracy to better than 1%. The Shift Minder Control Module is adjustable to switch at any of 64 different RPM settings with a 125 rpm increment between settings. The Shift Minder Control Module is self contained and requires no additional parts for rpm switch point selection. Please call with any questions regarding this item. We are an authorized Dynatek dealer. If you do not see the item you are looking for in our eBay store, please contact us at and we will make an eBay listing to fit your needs.About Us ATV Galaxy is an authorized Dynatek dealer located in Irvine, California. Please feel free to contact us anytime with questions or tech help. We are open Monday-Thursday 8-5 PM, Fridays 8-3:30 PM. Listing and template services provided by inkFrog