The diminutive Festo SDBT-MSX proximity switch, shown here affixed at the the top of a round ISO cylinder, is the world’s first such sensor with auto-teach-in, for simple, fast one-and-done commissioning.

The Festo SDBT-MSX, affixed here to a compact rectangular cylinder, is unique technology: Its auto teach-in feature sets the switching point the first time and never needs followup adjusting like legacy proximity switches.