The SICK IME18-05BPSZC0S is a flush-mountable inductive proximity sensor in an 18 mm nickel-plated brass barrel, 69 mm long. It detects ferrous targets at 5 mm and switches a PNP normally-open output at up to 1000 Hz. The M12 4-pin connector keeps wiring clean and field-replaceable.
Flush mounting means the sensing face can be level with the surrounding metal — no dead zone around the barrel — so it fits into tight machine frames or conveyor guides where a non-flush sensor would false-trigger on the mounting bracket. The 5 mm range is the rated sensing distance for a standard mild steel target; derate for other metals (roughly 60% for stainless, 40% for aluminum). Rated IP67, so the sensor body and the M12 connection survive washdown spray, coolant splash, and dusty environments — typical for packaging lines, machine tools, and material handling. The nickel-plated brass housing resists corrosion better than plain steel in damp panels. The 200 mA continuous current rating on the PNP output is enough to drive a PLC input directly or a small relay coil. At 1000 Hz switching frequency, it catches fast-moving parts on a conveyor or a cam shaft — not a high-speed spindle, but fine for most industrial cycle rates.