Lanbao LE40XZ-E2 DC 15/20mm M12 Inductive Sensor Lanbao LE40XZ-E2 DC 3/4-Wire Series is a square inductive proximity sensor with an M12 connector for non-contact metal detection in industrial automation equipment, conveyors, machine-position feedback systems, packaging equipment, and control cabinets. The LE40 housing provides a long sensing distance while the connector design makes replacement and maintenance easier than fixed-cable wiring. This listing covers LE40XZSF15-E2 and LE40XZSN20-E2 DC variants with 15mm flush or 20mm non-flush rated sensing distance. Depending on the selected part number, the sensor is available with NPN or PNP output and normally-open, normally-closed, or NO+NC logic. For related Lanbao inductive sensors, compare the Lanbao LE40 DC Cable Sensor, Lanbao LE40SZ DC 3/4-Wire Sensor, and Lanbao LE18 Rectangular Inductive Sensor. For a smaller rectangular option, see the Lanbao LE17 Rectangular Inductive Sensor. Technical Specifications Brand Lanbao Series LE40XZ-E2 DC 3/4-Wire Series Product Series Standard function series Sensor Type Square inductive proximity sensor Body Size 40 x 40 x 53mm reference Housing Material PBT Installation Options Flush 15mm or non-flush 20mm, depending on selected variant Rated Sensing Distance 15mm for LE40XZSF15-E2 variants; 20mm for LE40XZSN20-E2 variants Assured Operating Distance 0-12mm for 15mm variants; 0-16mm for 20mm variants Power Supply 10-30V DC Output Type DC 3-wire or 4-wire NPN / PNP, depending on selected variant Output Logic Normally open, normally closed, or NO+NC Standard Target Fe 45 x 45 x 1t for 15mm versions; Fe 60 x 60 x 1t for 20mm versions Switching Frequency 400Hz for 15mm versions; 200Hz for 20mm versions Switch-Point Drift