The Push Button Kit M12 comprises a push button with M12 thread, a black anodized sleeve, a black anodized bracket (1/4" mounting hole) and the connection cable.
It's easy to bolt it on at the handle bar with the clamp of a master cylinder or a mirror.
It is unobtrusive and can be used for all our instruments and a lot of other applications.
The maximum allowable current for the push button is 1A.