I have a previously used Speedohealer V4. It comes with a Suzuki plug & play cable (upper left, check your Suzuki to be sure it's correct for your model), a brand new universal cable that you can splice for other brands (lower), and the remote top speed memory cable & button (upper right).
Instructions, specs, and more info are available at Healtech
$30 plus shipping ($8 est USPS flat rate) or pickup in Gahanna.
I have some take offs from my bike that I'm probably never going to use.
Still some life left and if you bring your bike (I'll help)or wheel over I'll mount them for you. Bridgestones have avout ¹/3 tread left angel gt about half. If none takes them in the next week or two I'll toss them. They are just taking up space.