Hey guys,

I have an sb-318 bicycle computer odometer/speedometer, or what ever they call it these days.  Today on the way home on my mountain bike there is a icon that has started flashing on it and for the life of me I cannot find an answer in the crappy instruction manual about it and it has nothing there.  I looks like a nail or something on it, and I have reset the thing thinking that it will help, and nothing has come up as what it means and all.

Does any one here know?