Signal Dynamics Self Canceling Turn Signal Module
The Self Canceling Turn Signal Module by Signal Dynamics turns momentary switches into digital input devices. Pressing and holding your turn signal switches for either 1, 2 or 4 seconds will create various flashing patterns for changing lanes, turning or turning after a light. 
Features:

Multiple turn signal functions based on switch duration

No flasher relay needed

3 user selected flash periods

Automatically self-cancels

Works with LEDs and incandescent

Hazard flasher feature built in

Waterproof and heat resistant
Modes:

Mode 1 : Press turn signal button for 1 second, turn signal light will flash for 7 seconds, then self cancel, this mode is usually used when changing lanes

Mode 2 : Press turn signal button for 2 seconds, turn signal light will flash for 20 seconds, then self cancel, usually used when slowing down to go around a corner

Mode 3 : Press turn signal button for 4 seconds, turn signal light will flash for 75 seconds, then self cancel, usually used when stopping at a signal light and turn will be made after stopping

Note: All three modes above can be cancelled by pressing the same turn signal button a second time.

Mode 4 : Hazard Mode – is available all the time and will flash until cancelled, to engage, depress both the left and right turn signal buttons for 1 second, to cancel, depress both buttons again for one second
Note: Requires momentary push button style switches, not compatible with push to cancel type switches