Fits flexibly into the narrowest corners

Fiber-optic sensors and fibers

When installation space is extremely limited or the objects to be detected are tiny, fiber-optic sensors are the ideal solution. If it is necessary for strict requirements to be fulfilled, such as on the sensing range, temperature resistance, material durability or a flexible mounting process, the intelligent combination of sensors and fibers can provide the perfect solution. The extensive fiber portfolio from SICK with optical heads leave nothing to be desired when it comes to application-specific adaptation.


The smart solution for challenging detection tasks

WLL80 fiber optic amplifier

Smart and user-friendly: The WLL80 is a new generation of fiber optic amplifiers. Equipped with IO-Link and Smart Tasks, the powerful sensor reliably and precisely detects objects. Parameterization via OLED display menu is more flexible than ever before.

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LLX: the highest level of flexibility and economic efficiency

Fibers from SICK

The new LLX fiber product family offers numerous lengths, housing shapes and principles of operation and is characterized by an outstanding price/performance ratio. You can use the configurator to flexibly put together your desired variant – configuring light guides from SICK is that easy!

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Fiber-optic sensors

In bus operation

Fiber-optic sensors can be used as bus systems. This results in synchronization of the transmission pulse pattern of the connected

devices. This prevents mutual interference if fiber-optic heads are mounted close together.


It's the tip that makes the difference

Fibers from SICK

The selection of the suitable fibers and the specific version is the starting point for a sensor solution which fits the application. At SICK, the broad range of plastic and glass fibers permits optimal automation solutions. This applies, in particular, to tasks where the fiber must be specifically adapted to the application, where flexible cabling is crucial, where high temperatures are common, or where a particular material compatibility is important.

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Wide selection of accessories

Optional accessories for fiber-optic sensor and fibers

The fiber portfolio from SICK is supplemented by a practical and comprehensive range of accessories:

Tip adapters for proximity fibre-optic cables that focus the light beam enable very small objects to be detected.

Tip adapters for thru-beam type fibers reduce the aperture angle to increase the sensing range and avoid undesired reflections around the object.

Additional accessories such as protective metal sheathing, mounting brackets, and protective covers for fiber-optic sensors complete the product range.

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Communication modules for fiber-optic sensors

Fieldbus gateways

All relevant data interfaces are available, which reduces the cabling work. That saves time during planning and installation and also boosts performance. The fieldbus gateway can be easily connected to the compatible devices via the internal bus. The fieldbus allows you to make format or product changes from the controller at the touch of a button. By accessing the diagnostic functions it is possible, for example, to identify ahead of the time the need for maintenance work, which can then be performed in times of planned machine stoppages.

Product selection
Fits flexibly into the narrowest corners
The smart solution for challenging detection tasks
LLX: the highest level of flexibility and economic efficiency
Fiber-optic sensors
It's the tip that makes the difference
Wide selection of accessories
Communication modules for fiber-optic sensors

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Result 1 - 6 out of 6

High-performance fiber-optic sensor with world’s fastest response time
  • Selectable response time up to 16 µs
  • Sensing range up to 20 m (through-beam system); up to 1,400 mm (proximity system)
  • Bus-compatible with anti-interference
  • 2 x 4-digit digital display
  • Adjustable hysteresis
  • Rotatable display screen
  • High-resolution signal processing
  • Programmable time delays
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Simple, flexible detection
  • Intuitive operating concept
  • Rapid response time of 50 μs
  • Switching threshold adjustment via potentiometer, or teach-in via pushbutton or cable
  • IP 66 enclosure rating for high degree of ruggedness
  • PNP/NPN switchover (teach-in variant)
  • 4-digit digital display (teach-in variant)
  • Variable fixing concept
  • Various connection types available
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The smart solution for challenging detection tasks
  • Response time up to 16 µs
  • Sensing range up to 20 m (through-beam system); up to 1.4 m (proximity system)
  • IP54 enclosure rating
  • OLED display with text display in various languages
  • Stand-alone version with IO-Link
  • Diagnostic functions and Smart Tasks
  • Adjustable hysteresis and continuous threshold adaptation
  • Bus version available
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The highest level of flexibility and economic efficiency - fibers from SICK
  • Proximity and through-beam fibers
  • Threaded and smooth sleeve heads available
  • Axial and radial fiber optic head alignment available
  • Fiber optic heads with tiny dimensions
  • Ambient condition-specific fiber lengths
  • Product range constantly being extended to include new variants
  • Excellent price/performance ratio
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A wide variety of solutions to your most challenging applications SICK's fiber-optic cables
  • Very large selection of plastic and glass fiber-optic cables.
  • Fiber-optic cables resistant to chemicals and high temperature
  • Threaded and smooth sleeves, bands of light (array), 90° reflection versions available
  • Focused optics
  • Proximity and through-beam versions available
  • Plastic , protective metal or Teflon sheathing available
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Versatility for standard applications
  • Rapid response time (50 μs)
  • Switching threshold adjustment via potentiometer, or teach-in via button or cable
  • Four different teach-in modes
  • Simple installation
  • Red or green LED emitter
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Result 1 - 6 out of 6


Fits flexibly into the narrowest corners

The combination of fiber-optic sensor and fibers is an excellent solution for a wide range of applications. Challenging detection tasks can be solved in combination with the matching fibers thanks to the comprehensive adjustment options of the fiber-optic sensor.

The comprehensive fiber portfolio from SICK satisfies all requirements regardless of whether the size, mounting options, material resistance or suitability for a special application is the deciding factor.


When using the fiber-optic sensors in bus operation, up to 16 devices can be connected to a bus system. This creates several benefits.

Prevention of mutual interference

Through synchronization of the transmission pulse pattern, each fiber-optic sensor detects only the emitted light which it itself emitted.

Reduced setting and wiring effort

The parameter settings can be copied from the base sensor to all other connected fiber-optic sensors with the push of a button.

With a single input signal on the base sensor, all other sensors can be taught in at the same time. In addition, the base sensor supplies all other sensors with voltage, resulting in reduced wiring effort.

Connection to fieldbus gateways

The fiber-optic sensors can be connected to a fieldbus gateway as a bus variant. The fieldbus allows you to make format or product changes from the control at the touch of a button. This means extensions and changes are easy to make. The transmission of cyclical data enables quick access to all process data of the connected sensors. Thanks to acyclical data communication, you can always access diagnostic functions. For example, this makes it possible to identify the need for maintenance work early on, which can then be done in times of planned machine downtime.

Fieldbus gateways

Using the fieldbus gateway, up to 16 fiber-optic sensors (WLL180T and KTL180) and distance sensors (OL1, OD Mini Pro, OD5000 in combination with the AOD1 evaluation unit) can be integrated into a network. All sensor data can be read out and written on the sensor using the fieldbus gateway. Settings can also be made and reviewed in this way (e.g. in the event of format or product changes) if the sensors are installed in hard-to-reach places.

The sensor and therefore the machine status can be determined at any time with the monitoring of sensor data, and diagnostic functions can also be implemented. All sensor data is transmitted to a fieldbus cable, which considerably decreases wiring effort.

Wide selection of accessories

Mounting systems

5306574 BEF-WLL170

5325812 BEF-WLL180

5331290 BEF-LL3M6500

5331291 BEF-LL3M61000

5305479 BF-WLL160-10

5306094 BF-WLL160-13

5313011 BF-EB01-W190

5336263 BF-GLL170

Adapter lenses

5308127 LL3-DA01

5308128 LL3-TA01

5308129 LL3-TA02

5308130 LL3-DA02

5326461 LL3-TA01S

5326462 LL3-TA03

5326463 LL3-TA04

5326464 LL3-TA05

5326465 LL3-DA03

5326466 LL3-DA04

5326467 LL3-DA05

5326468 LL3-DA06

5326469 LL3-DA07

5328271 LL3-TA01IR

5334039 LL3-DA08

5334040 LL3-DA09

5338642 LL3-TA07

5338873 LL3-TA06


5334439 BL-TS40-40

Fiber cutting device

5304141 FC