M12 metal detection sensor — 4 mm sensing pitch Why you need this sensor Reliable metal detection in tight spaces: the compact M12 form factor with a 4 mm sensing pitch fits into constrained assemblies where larger sensors won’t. Keeps machines running in harsh conditions: a waterproof design maintains detection performance in wet, dusty, or wash-down environments commonly found on production lines. Simplifies control integration: selectable NO/NC behavior and three-wire NPN or PNP outputs let you match existing PLC and control logic without extra wiring changes. Key benefits Flexible output modes: configure as normally open (NO) or normally closed (NC) to match your safety and control schemes. Universal wiring options: choose NPN or PNP in a standard three-wire configuration for straightforward connection to most PLCs and controllers. Durable industrial construction: metal housing resists mechanical wear and offers long service life in demanding applications. Standard connectors for fast installation: uses M12 connectors so replacements and cable runs are easy to source and install. Important attributes Function: detect metal objects reliably with a 4 mm sensing pitch. Compatibility: works with common PLCs and control systems via M12 connector and NPN/PNP outputs. Size and form: compact M12 body designed for limited-space mounting. Material and durability: sturdy metal housing suitable for industrial environments. Environmental performance: waterproof design for operation in wet, dusty, or wash-down conditions. Typical use scenarios Conveyor part handling: detect metal parts on a conveyor to trigger rejects, sorting, or counting. End-of-line verification: confirm a metal component is present before welding, pressing, or other machine operations. Robotic automation: verify a metal object has been picked up by a gripper or tool before the robot proceeds. Installation notes Connect using standard M12 cables; select NPN or PNP wiring to match your PLC inputs. Set sensor output polarity to NO or NC according to your control logic and safety requirements.