IFM-Electronic-IFS-Series-Inductive-Proximity-Sensors-M12-Metal-Thread-M12-Conn-IFM-Electronic-IFS204-p-This-M12-x-1-flush-mounting-normally-open-inductive-proximity-sensor-features-an-increased-sensing-range-The-sensor-has-a-high-switching-frequency-&-gives-high-accuracy-measurement-&-a-robust-threaded-brass-housing-gives-reliability-&-a-long-life-Some-of-the-advantages-of-using-an-inductive-sensor-over-other-types-include-non-contact-operation-free-from-any-wear-&-tear-&-w