The OD2-P30W04U2 is a 2D Laser Displacement Sensor from the SICK OD Value series. It's a PNP-output unit with a 30 mm nominal standoff and ±4 mm measurement range, meaning it profiles height, gap, or position on a moving line without contact. The 12~24 VDC supply and cable leads keep wiring simple — no separate amplifier needed.
The 26.0 mm to 34.0 mm installation distance sets the optical window. Mount the sensor so the target surface falls inside that band — outside it, the laser spot defocuses and the measurement goes non-linear. The IP67 rating means the housing and optics survive washdown, so it's suited for food-and-bev lines or machining coolant splash. Operating temperature is -10°C to 40°C. That's a controlled-environment range — fine for a production hall, but not for a freezer tunnel or a foundry floor. The chassis-mount body bolts to a bracket or machine frame; no DIN rail adapter in the package.