Replacement Photoelectric Sensor E3FA-RN12, Retro-Reflective Type, NPN Output, 500 mm Sensing Distance, 1 Count

This listing is for a replacement-format photoelectric sensor identified as model E3FA-RN12. The unit is a retro-reflective style sensor intended for use where a reflector-based sensor is required; supplier references list its effective sensing distance as approximately 500 mm (19.7 inches). The sensor uses an NPN output and supports selectable Dark-ON or Light-ON switching modes to accommodate different detection needs. Many marketplace and supplier listings for the E3FA-RN12 reference a pre-wired configuration with a 2 m cable; confirm the exact cable length and connector type for your application. Sold as a single sensor. Please verify the model code and physical connector on your equipment to ensure proper fit prior to purchase.

• Exact model: E3FA-RN12 - replacement-format photoelectric sensor matching E3FA-RN12-style installations.
• Sensing type: Retro-reflective (requires a reflector) with up to 500 mm (19.7 in) sensing distance as listed in supplier references.
• Output & switching: NPN output with selectable Dark-ON / Light-ON switching for flexible detection behavior.
• Wiring: Pre-wired cable variant referenced in supplier pages (2 m cable commonly offered for E3FA-RN12); confirm cable length/termination before installation.
• Package & quantity: Sold as a single sensor unit (1 count). Verify model code and connector fitment against your equipment before ordering.