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LSENSR Fiber Optic Temperature Sensor Product
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Key Features

  • Industrial use with rigid polyimide tip, 1.7 mm diameter
  • Rugged tip ideal for Industrial application
  • Complete immunity to EMI/RFI/lightning
  • High vibration environments

Product Description

LSENSR Fiber Optic Temperature Sensor Summary


The robust and reliable sensors for temperature monitoring in Energy, RF/Microwave, Food & Beverage, and Industrial applications. The sensor tip is protected by rugged polyimide tube and designed for continuous temperature monitoring for longer time.

The LSENSR sensors are accurate and repeatable under high Electric, Magnetic, Microwave and Radio Frequency (RF) environments. The sensors do not need complex compensation under these environments. The sensors are easily installable and do not need re-calibration over time.

LSENSR Benefits
    • Sensors do not require any recalibration
    • Suitable for OEM-type applications
    • Available in different cables and sheath options
    • Robust fiber optic temperature sensor
    • Each sensor comes with a complete test certification
    • Robust packaging
    • No shift over time, high stability
    • Customizable according to customer specific applications
LSENSR Fiber Optic Temperature Sensor Applications
    • Industrial process control and monitoring applications
    • High voltage environments
    • Harsh and Hazardous environments
    • Temperature measurements conducted in confined spaces, hazardous or strong EMI/RFI/MRI environments
    • Wood drying industry

Detailed Overview

A multiuse fiber optic temperature sensor designed for a wide range of applications, especially for the use in demanding applications. The sensor offers complete immunity to RFI, EMI, NMR and microwave radiation. The standard temperature sensor  has a response time of 0.2 s. With a standard deviation of +/-0.2 °C it allows for precise and repeatable measurements. The coating of the temperature sensor is made of PTFE, and the fiber tip has a diameter of 1.7 mm with Rugged Polyimide coating and has a stainless steel ST-connector. For mechanical stability and applications e.g. in oil special protective coatings and hoses are available. The fiber optic probe consists of a PTFE protected glass fiber and a GaAs-crystal (Gallium Arsenide) at the sensor tip. It is totally free of metal and immune to external fields, therefore probes are explicitly suitable for the use in high temperature ranges as well as in aggressive operating environments. The sensor cable can be from  several meters to kilometers long without influencing the accuracy of the measurement result. Other sensor lengths and connector types are available upon request.

Technical Specifications

Temperature range-200 °C to +250 °C
Temperature range (Optional Range extensions) Down to 4 °K / Up to +300 °C
Repeatability0.2 °C
Accuracy absolute temperature+/- 0.8 °C
Accuracy relative temperature+/- 0.2 °C
Probe sheathing materialTeflon Coated, Rugged Polyimide protection for sensor tip
ConnectorStainless Alloy / Optional - Dielectric
Response timeUp to 0.2 Sec
Probe sensitive area - Diameter1.7 mm Diameter
LongevityProbe accuracy & repeatability constant over time

Ordering Code

LSENSR Fiber Optic Temperature Sensor Ordering Code

Product Drawing

LSENSR Fiber Optic Temperature Sensor Product Drawing