This Digital Ferrous Metal Proximity Sensor features a solid-state 7/8" permanent magnet to offer the largest detection gap of our line of ferrous metal proximity sensors, 0.5"-2.75".
Output options include analog only and a digital and analog version. Our digital version features an option for NPN or PNP voltage output. 
These sensors come standard with a durable A12 anodized aluminum housing, and a 4 pin male 12mm micro connector with integral flange.