Quick detail information about the sensor :

Series : M12 Shorter Inductive proximity sensor

Size : M12*50-M12

Housing Material : brass nickel plated

Mounting : shielded/Non-shielded

Sensing Distance Sn(mm): 2mm/4mm

Operating Voltage : DC 10-30V

Output function : NPN/PNP NO/NC

Protection Category : IP67

connection : M12 4 pin connector