# WPS 112

> The wider sensing window provided by WPS 112 allows for 4" web width change capacity in single edge guiding applications without calibration.

**Last updated:** 2026-03-07

**Source:** https://r2r.tech/products/sensors/wps-112

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> Highly Accurate Sensors Can Also Be Adaptive

## Specifications

| Sensor Type | Fiber Optic (diffuse-reflective) | Sensing Range | 112 mm (4.4 in) |
| ----------- | -------------------------------- | ------------- | --------------- |
| Image Sensor | 1D image sensor | Resolution | 0.127 mm (0.005 in) |
| Repeatability | >99.9% | Working Distance | 15-25 mm (0.6-1.0 in) |
| Response Time | 20 ms standard | Operating Temp | -10°C to 65°C (14°F to 150°F) |
| Protection Class | IP54 | Controller Required | Yes (SCU5 only) |
| Status | Legacy Product – Consider ODC 96 for new installations |

## Features

- Zero recalibration – sensor adapts automatically to any material (clear, opaque, metallic, nonwoven, mesh)
- Medium sensing range – 112 mm (4.4 in) for versatile applications
- Material-agnostic detection – fiber-optic technology based on light scattering and spatial filtering
- Temperature immune – unlike ultrasonic sensors, performance unaffected by temperature changes
- One sensor, multiple applications – edge guiding, width measurement, centerline detection

## Benefits

- Stop losing hours to sensor recalibration when switching between materials
- Eliminate changeover delays – no manual sensor adjustments between product runs
- End quality escapes caused by undetected sensor drift between changeovers
- Remove safety risks from operators accessing sensors in awkward positions
- Prevent hidden scrap from temperature-related inaccuracies that plague ultrasonic sensors

*Note: WPS is a legacy product line. For new installations, consider the *[ODC 96](https://r2r.tech/products/sensors/odc-96)(https://r2r.tech/products/sensors/odc-96)* or *[ODC 192](https://r2r.tech/products/sensors/odc-192)(https://r2r.tech/products/sensors/odc-192)* with enhanced features.*

## Applications

- Edge position sensing on medium web applications
- Web guiding for converting and packaging lines
- Width measurement
- Centerline detection

## Product Details

- **Web Widths:** Narrow (<12"), Medium (12"-48")
- **Line Speeds:** 1000+ fpm
- **Material Types:** Opaque Material, Nonwoven
- **Lead Time:** Legacy - Contact for Availability

**Tags:** WPS Sensors, WPS 112, Sensors, Infrared Sensor, Web Edge Sensors, Ultraviolet Sensor, Contrast Sensors, Width Measurement Sensor, Thread counting and monitoring

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies LLC, headquartered in Stillwater, Oklahoma, manufactures patented fiber-optic web position sensors and web guiding systems for roll-to-roll manufacturing. Products include ODC edge sensors (48mm to 960mm), 1DC all-in-one sensors, SCU-series controllers, and complete web guide systems.

- Website: https://r2r.tech
- Phone: +1 (888) 290-3215
- Email: sales@r2r.tech