# Do I need to reposition the sensor when changing web widths?

> No. Roll-2-Roll Sensors are available in apertures from 48mm to 960mm, allowing a single sensor to accommodate a wide range of web widths without repositioning. For example, an odc 288 sensor can detect edges anywhere within its 288mm (11.3 in) sensing range. Whether you're running a 100mm web or...

**Last updated:** 2026-02-01

**Source:** https://live-roll2roll.pantheonsite.io/resources/faq/do-i-need-reposition-sensor-when-changing-web-widths

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## Question

Do I need to reposition the sensor when changing web widths?

## Short Answer

No. Roll-2-Roll's wide-aperture sensors (up to 960mm) accommodate multiple web widths without repositioning.

## Detailed Answer

No. [Roll-2-Roll® Sensors](https://r2r.tech/products/sensors) are available in apertures from 48mm to 960mm, allowing a single sensor to accommodate a wide range of web widths without repositioning.

For example, an [ODC 288](https://r2r.tech/products/odc-288) sensor can detect edges anywhere within its 288mm (11.3 in) sensing range. Whether you're running a 100mm web or a 250mm web, the sensor detects the edge without adjustment.

This eliminates:

- Changeover time: No 2–5 minute delays for sensor repositioning between SKUs
- Operator error: No risk of incorrect sensor positioning
- Motorized positioners: No additional hardware cost or maintenance

Combined with material-agnostic detection (no recalibration between clear films, opaque substrates, or metallic foils), [Roll-2-Roll® Sensors](https://r2r.tech/products/sensors) enable true "set and forget" operation.

**Category:** Technical, Installation

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration at ±0.1mm accuracy up to 760 mpm — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS).

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