Hi all,
I did a huge face palm the other day when after a protracted upgrading the bed of my machine to allow for precision work holding I suddenly realized that my probing procedure was going to need an upgrade as well. The wood spoil board has been replaced with extruded 6061 T651

I have been looking at the market place and will have to resort to the lower cost solution for the meantime.
Would anyone care to make a suggestion in the $100 range like the one pictured
Thanks in advance.
Chris

Addendum:
It would be useful to share any advise regarding the use of these with Mach4 probing sequence, method of connection to an ESS motion controller and such. Is it a PNP 5V for instance. Two wire connection or other?
Have I missed anything? I gather that for $100 they aren't wireless operation.

Cheers.