The Omron E2B-M30LS10-M1-B1 is an inductive proximity switch with a 30 mm diameter cylindrical brass housing and long body. The PNP normally open output switches within 10 mm.
The 10 mm sensing distance is specified for a standard mild-steel target; actual range will shift with target material and size. Shielded construction allows flush mounting in metal—no extra spacing needed for side-wall influence. The long body (barrel length) gives you threading depth for thick panels or bracket stacks without nut interference. PNP output with M12 connector: sinking the load means the sensor sources current. Most modern PLC digital inputs are sinking (NPN-sourced), but many controllers have selectable families. Verify your input card type before wiring.