sensor or cable

I would favor the sensor only because I dont see a cable, just a wire connector.

http://www.cheapcycleparts.com/mode...011-stryker--xvs13cab/assemblies/272126-meter

Dude ~I have been rear ended just one time, thank God I was in my car. Now in my bike I have had (that guy behind me on a fast approach) happen to me and I have had a kid Creep up to me. She was texting and did not keep her foot firmly on the brake. The "Texting Creeper" happened to me first. Since then I dont sit at the light anymore "If I think I am in Danger" I will run the light in a heart beat! Be safe my friend.