The Omron OD2-N30W04U0 is a 2D laser displacement sensor from the OD Value series, delivering a ±4 mm measurement window at a 30 mm standoff. NPN output, 12-24 VDC supply, IP67-rated housing — it's built for tight-profile profiling on assembly lines where you need to confirm part presence, gap, or height within a 26 to 34 mm install envelope.
The 26.0 mm to 34.0 mm installation distance defines the physical standoff between sensor face and target. Within that band, the sensor resolves displacement over a ±4 mm window — meaning a part moving ±4 mm from the 30 mm midpoint is still inside the measurement range. That's tight enough for weld-nut presence or small-press-fit height checks, not a wide-gap conveyor profile. The connector termination keeps field swaps fast; no hard-wired pigtail to cut and re-splice. Supply voltage spans 12 to 24 VDC, so it runs off a standard industrial 24 V bus without a separate regulator. Operating temperature of -10°C to 40°C covers most indoor factory environments but not a paint-oven zone or freezer aisle.