Originally Posted by Varun
Can anyone post whether the magnet cylinders ( M ) has the magnetic switch as an addition to the cylinder or is it attached to the cylinder.
The "switch" or sensor is a separate piece that fits onto the cylinders with something similar to hose clamp (its been a while since I've looked at them)
They do not have to be used with a magnetic cylinder (they can be taken off the cylinder).
Just keep in mind, the sensors will not work on regular cylinders; only those with a "M" preceding the part number (stamped on sidewall of cylinder) have the magnetic pistons used to trip the switches/sensors.
If you order magnetic ones from Bimba (as the free ones) you get the sensors included. I am not sure if they are separate items (thus, an additional cost) if procured elsewhere.