Diffuse reflective sensors and light barriers
O-21 Miniature

4 functional principles, can be easily integrated, can be used flexibly

The very small, high-performance diffuse reflective sensors and light barriers in the O-21 miniature series can be integrated in a space-saving manner. The background suppression sensors are suited for detecting small and flat objects. All O-21 miniature sensors distinguish themselves with their space-saving design and large ranges. The variants with pnp switching output have an IO-Link interface.

OH21 Background suppression sensors

  • Preset scanning ranges 15 mm, 50 mm, 80 mm
  • Adjustment of scanning range in mm-grid via IO-Link

For the detection of minimal height differences

OT21 Diffuse reflective sensors

  • Scanning object detection up to 180 mm
  • Diagnosis of functional reliability with status LED

Efficient detection of light objects without background

OR21 Retro reflective sensors

  • High functional reliability through a large range
  • Small light spot makes small reflectors possible

Large ranges with little assembly effort

OS/OE21 Through-beam sensors

  • High functional reliability through a large range
  • Diagnosis of functional reliability with status LED

Large ranges with little assembly effort

Application examples
O-21 Miniature