The Harken DSDBK1-ND black dual Digital System Switch, AFT Icon Version 1 (1-2), is designed for reliable operation of electrically powered yacht systems.

To accomplish this, safeguards have been built into the systems.
- The waterproof control button translates electrical information into a binary code that won't allow the system to start without the signals being verified by the decoder. An analog system sends continuous electrical information directly to the powered device which means damage to the wiring or water ingress could result in unsafe activation. 
- Watertight seals are never exposed, eliminating potential damage from sun and prolonged use.
- Underneath each control button, two command switches must work in unison before a signal is sent.
Harken Digital System Switches resist impact, wear, and abrasion. A unique adhesive mounting system is available where drilling is undesirable. The product is offered in black polyamide resin or stainless steel. Integrated lighting provides low-light visibility.

Two-function control buttons are housed in a single space-saving system for 1st/2nd gear on winches, up/down on anchors, or in/out on furling systems.