# What is the accuracy of Roll-2-Roll edge sensors?

> Roll-2-Roll Sensors provide true spatial awareness—not just binary on/off detection: Hardware Resolution0.0635 mm (0.0025 in) Firmware ResolutionUp to 0.015875 mm Repeatability>99.9% Linearity Error

**Last updated:** 2026-02-03

**Source:** https://live-roll2roll.pantheonsite.io/resources/faq/what-accuracy-roll-2-roll-edge-sensors

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## Question

What is the accuracy of Roll-2-Roll edge sensors?

## Short Answer

Roll-2-Roll edge sensors achieve ±0.1mm accuracy with hardware resolution of 0.0635mm and repeatability greater than 99.9%.

## Detailed Answer

[Roll-2-Roll® Sensors](https://r2r.tech/products/sensors) provide true spatial awareness—not just binary on/off detection:

| Hardware Resolution | 0.0635 mm (0.0025 in) |
| ------------------- | --------------------- |
| Firmware Resolution | Up to 0.015875 mm |
| Repeatability | >99.9% |
| Linearity Error |  |
| Response Time | 20 ms standard (1 ms available) |

This accuracy is maintained across all material types without recalibration—critical for precision applications like battery electrode coating, optical film production, and high-speed converting.

**Category:** Technical

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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