it's around $30.00. just do a search on the net for it. I got it locally for $30.00 If any of you guys mounted this before please....HELP.. I
made some aluminum brackets but I don't think they hold up well in high speeds.
I have the BC 400.. it can reach 180 Mph (or in my case 300 Kph).. It has a sigle button for all displays... that's handy with your gloves on ! Got it installed on the left clip-on so it's allways in reach.... @ first I purchased it just for the clock... comes in handy for I allways forget the time when I go bazerk on my bike ha ha... they cost around 15 bucks over here (German product.. neighbour country)....
Heres a pic of my BC1400 mounted. Works real well. Just make sure you secure the sensor very well. I had the magnet hit the sensor once I hit a decent speed, needless to say the sensor no longer worked. Quick emailed Sigma, and they sent me a new set up free. Thumbs up to Sigma Customer Service