Direct Supply 

BRAND NEW PARTS  
M18 x 1 cylindrical thread
Copper chrome plating
The attenuation coefficient of the full metal detection is always 1
Protection class IP68
Anti-magnetic interference
Maximum switching distance
Integrated protection can prevent attenuation
Very small metal free area
3-wire direct current, 10... 30 VDC
Always-on, PNP output
M12 x 1 connector