content provided by balluff

The BOS 21M photoelectric sensor family with IO-Link offers you a variety of application possibilities, including those in harsh industrial environments. That is because their rugged metal housing delivers both IP67 and IP69K protection and Ecolab approval.

The sensors are ideal for detecting objects of any kind. For example, they detect cartons on a conveyor belt as easily as they check parts for presence.

Setup and maintenance is conveniently provided by the potentiometer, indicator options and a rotating connector. The highly visible red light makes the sensor easy to align. And the IO-Link interface gives you the traditional IO-Link benefits: simple installation and easy diagnostics. The universal form factor and various function principles mean you can use the sensor very flexibly.


  • Highly visible red light for easy alignment

  • IO-Link V1.1 with 38.4 kBit/s (COM2)

  • Simple adjustment via potentiometer

  • Function indicator and contamination indicator via LED

  • Convenient rotating connector

  • Ecolab approved