• 4300_series

Non-metallic Temperature Sensor | os4300

The os4300s are three versions of a temperature sensor based on fiber Bragg grating (FBG) technology housed within a non-metallic tube.

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Product Description

The os4300 Non-metallic Temperature Sensors are housed within a sealed, alumina ceramic tube that are designed to make handling easy and sensor installation fast and repeatable. It is based on fiber Bragg grating (FBG) technology and since there are no epoxies holding the fiber to the tube, long term stability is ensured by design.

In side by side comparisons with conventional thermocouples, the os4300 is equally sensitive and accurate, while providing sub-second response time, wider operating range, no calibration, and no EMI noise. The os4300 temperature sensor is qualified for use in harsh environments and delivers the many advantages inherent to all FBG based sensors.

Three packaging options provide for installation that mimics that of conventional thermocouples with armored cables and protected connectors, and small sensors that provide the user with both installation flexibility and sub second thermal response.

This sensor can be used alone or in series as part of an FBG sensor array. Installation and cabling for such arrays is much less expensive and cumbersome than comparable electronic gage networks.

With each sensor, Micron Optics provides a Sensor Information Sheet listing the calibration coefficients needed to convert wavelength information into temperature. Micron Optics’ ENLIGHT Sensing Software provides a utility to calculate and then record, display, and transmit data for large networks of sensors. 

Key Features

  • Fast response time.
  • Qualified to same rigorous standards used for comparable electronic gages.
  • Non-metallic construction.
  • Fast, simple, repeatable installation.
  • Armored fiber cable weldable package and rugged sensor package.
  • Connector protection fittings available for harsh environments.
  • Several package options for field applications.
  • Calibrated for high absolute accuracy.
  • Double ended design supports multiplexing of many sensors on one fiber.
  • Micron Optics’ patented micro opto-mechanical technology.
  • Included in ENLIGHT’s sensor templates – allows for quick and easy optical to mechanical conversions.


(for full specifications, please download data sheet)

Ordering Information


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Micron Optics Optical Sensing Guide - Download
os4300 Sensor Information Sheet 0906 1 Docos4300 Sensor Information Sheet 0906 1 Doc - Download
os4310 Non-metallic Temperature Sensor Drawingos4310 Non-metallic Temperature Sensor Drawing - Download
os4330 Non-metallic Temperature Sensor - Epoxy Mount Drawingos4330 Non-metallic Temperature Sensor - Epoxy Mount Drawing - Download
os4350 Non-metallic Temperature Sensor - Armored Cable Flange Mount Drawingos4350 Non-metallic Temperature Sensor - Armored Cable Flange Mount Drawing - Download
os4310 Drawing - Non-Metallic Temperature Probe - Single Endedos4310 Drawing - Non-Metallic Temperature Probe - Single Ended - Download