Used ifm electronic BNI-48 underspeed monitor/monitoring relay. The housing is labeled “UNDERSPEED MONITOR A300,” order no. DA0001, and Made in Germany. OBSERVED: - Orange industrial housing with screw terminals - Adjustable switchpoint markings - Pulse-rate markings: 5–25 pulse/min and 20–100 pulse/min - Visible AC/DC power connection diagram, PNP sensor input diagram, relay output terminals, and wiring diagrams - Label markings include 230 V AC ±10% / 50/60 Hz / 5 VA or 24 V DC ±10% / 3 W CONDITION: Used condition with dirt, scuffs, label wear, and general surface wear. Several connected wires appear cut, stripped, or damaged. Exact relationship between the BNI-48 designation, A300 marking, and MO36672 marking has not been independently verified. INCLUDED: One ifm electronic BNI-48/A300 monitoring relay unit as shown. MISSING/NOT INCLUDED: No separate accessories, mounting hardware, or documentation are visible. Completeness is unknown. TESTING STATUS: Not tested. Functional operation has not been verified, and no powered operational demonstration is available. Buyer should inspect the unit, wiring, and electrical markings before use. Do not rely on the visible CE marking or electrical ratings without appropriate manual inspection and compliance review.