What it is and where it sits
The E3FADP26F2OMS is a diffuse reflective photoelectric sensor in the E3FA series, built around an infrared LED emitter and a PNP output stage in a 16.6 mm x 45 mm cylindrical housing that terminates in an M12 4-pin connector. Diffuse reflective sensors in this class detect objects by reading light reflected back from the target rather than relying on a separate reflector or through-beam partner, which makes them the right pick for short-range presence detection on conveyor skids, bottle lines, and small-part feeders where mounting a reflector is impractical. This particular code is rated to a maximum sensing distance of 1 m, which puts it at the long end of the E3FA diffuse lineup and the one to specify when the target sits further from the sensor head than a typical 100-300 mm diffuse head can reach.
Electrical and timing ratings that decide fit
Load current is rated at 100 mA, which is the ceiling for the PNP switching output — count the input card sink and any indicator lamp wired in parallel against that number before paralleling multiple sensors off one source. Response time is 500 us, fast enough for parts-counting on small conveyors and slow indexing tables; for high-speed counting above a few kHz, look at a faster variant. Switching mode is selectable Light-ON / Dark-ON, so the same sensor can be wired to trigger on object presence or on object absence depending on the input card's logic convention.
Environment and termination
The housing carries an IP67 / IP69K rating, which covers both immersion and high-pressure hot-water washdown — typical for food, beverage, and pharmaceutical lines where the sensor gets hosed down at shift end. Operating temperature spans -25 °C to 55 °C, so the sensor will sit in unheated cabinets and outdoor skids in most temperate climates without derating. The M12 4-pin connector is the standard A-coded cordset format used across most photoelectric lines; a standard 4-wire sensor cable drops straight on without adapters.
Sibling the buyer will cross-shop
The E3FADP25F2OMS sits in the same E3FA housing with the same M12 4-pin connector, PNP output, and IP67/IP69K sealing, but its maximum sensing distance is 300 mm — about one-third of the E3FADP26F2OMS range. If the application only needs short-range presence detection, the E3FADP25F2OMS will substitute directly without rewiring; if the install was laid out around a 1 m reach, it will not.