Mid range distance sensors

Larger than life performance – flexible measurement and detection up to 35 m

Your Benefits

  • Precise and reliable measurement irrespective of object color extends running times and process quality
  • A compact size and blind zone make flexible mounting possible when space is limited
  • Optimum solution thanks to flexible settings for speed, range and repeatability
  • Flexible interface use: 4 mA to 20 mA, 0 V to 10 V, current sourcing output, current sinking output, or IO-Link – making machine integration simple
  • With their straightforward alignment, optimal performance or inconspicuous measurement, versatile light senders make for an ideal solution in all scenarios
  • Low investment costs and high performance levels guarantee a short return on investment
  • IO-Link offers full process control, from commissioning through to service
  • DT35-S - Certification up to performance level b allows versatile use for protecting persons and capital goods


Larger than life performance – flexible measurement and detection up to 35 m

The Dx35 family of distance sensors, based on HDDM™ technology, combine maximum reliability, measuring capabilities, flexibility and the perfect price-performance ratio in a very compact housing.

Depending on the application, sub-product families are available for distance measurement on natural objects (DT35 and DS35) or on reflective tape (DL35 and DR35).

The sub-product families also come with different interfaces. In addition to the IO-Link function, which all the devices have, the product family also offers sensors with analog and switching output (DT and DL) or the option of two switching outputs (DS and DR).

Its final distinguishing feature when selecting the right sensor for the application is the light sender: infrared or red light in laser class 1 or 2.

At a glance
  • Highest reliability, ambient light immunity and best price/performance ratio thanks to HDDM technology
  • Measuring range of 0.05 m to 12 m for natural objects or 0.2 m to 35 m for reflective tape
  • Devices with analog and digital output, or just switching
  • Infrared or red emitted light in laser class 1 or 2
  • Repeatability: 0.5 mm to 5 mm
  • Compact housing size
  • IO-Link
  • DT35-S - Certified to ISO 13849 (PL b) and IEC 62998 (PC B)


Dx35 – Larger-than-life performance

The Dx35 mid range distance sensors reflect SICK’s long-standing expertise in the area of distance sensor technology. SICK has created what was previously thought to be impossible. The attractive housing design combined with exceptional performance make the Dx35 the number one choice for use in confined spaces with a scanning range of up to 35 m.
Adaptable The Dx35's response time can be customized to keep track of even the fastest production processes.
Focused With its HDDM technology, the Dx35 guarantees precise measurements across the entire color spectrum.
Resolute Some objects can make a task unsolvable. But not for the Dx35, which can detect and measure even extremely dark and shiny objects as well as objects inclined at extreme angles.

Reliable measurement results even for difficult tasks and ambient conditions


As co-founder of IO-Link, SICK offers one of the broadest IO-Link portfolios on the market. Smart Sensors with IO-Link generate and receive data and information which goes beyond conventional switching signals or measured process parameters. This allows them to create substantial increases in efficiency, more flexibility, and better planning security for predictive maintenance of machines and systems. Benefit from SICK’s extensive experience with a wide range of sensing technologies, and now also in combination with the SIG100 and SIG200 Sensor Integration Gateways.

To find out more on the topic of “IO-Link”, speak to your contact person at SICK or click here.

The IO link allows you to use a simple output signal switching device as a communication interface. This enables quick batch changes and simple commissioning, maintenance and diagnostics.

Variable distance measurement in storage and conveyor systems

The Dx35 can be used in a wide variety of applications across all industries. In storage and conveyor systems, for example, it provides reliable empty bay and fill level detection.
Collision avoidance in shuttle warehouse systems
Empty bay detection with automated guided vehicles
Detecting overlapping wooden boards

Reliable results throughout the entire production process – even under harsh ambient conditions thanks to the rugged housing

SICK LifeTime Services

SICK’s services increase machine and plant productivity, enhance the safety of people all over the world, provide a solid foundation for a sustainable business operation, and protect investment goods. In addition to its usual consulting services, SICK provides direct on-site support during the conceptual design and commissioning phases as well as during operation.

The range of services not only covers aspects like maintenance and inspection, but also includes performance checks as well as upgrades and retrofits. Modular or customized service contracts extend the service life of plants and therefore increase their availability. If faults occur or limit values are exceeded, these are detected at all times by the corresponding sensors and systems.

Consulting and design Application-specific advice on the product, its integration and the application itself.
Commissioning and maintenance Application-optimized and sustainable ─ thanks to professional commissioning and maintenance by a trained SICK service technician.
Service contracts Extended warranty, SICK Remote Service, 24-hour helpdesk, maintenance, availability guarantees and other modular components can be individually combined on request.


Technical overview

  • Technical data overview

    Technical data overview

    Measuring range50 mm ... 35,000 mm, 90 % remission, 18 % remission, 6 % remission, on “diamond grade” reflective tape
    Repeatability≥ 0.5 mm
    AccuracyTyp. ± 10 mm, typ. ± 15 mm
    Response time

    2.5 ms ... 96.5 ms

    4.5 ms ... 192.5 ms

    15 ms ... 50 ms

    Output time1 ms ... 64 ms, 1 ms/2 ms/4 ms/8 ms/32 ms, 2 ms/4 ms/8 ms/16 ms/64 ms 1) 2)
    IO-Link✔ , IO-Link V1.1 / ✔ , IO-Link V1.1, COM2 (38,4 kBaud) / ✔ , V1.1
    Analog output
    TypeCurrent output / voltage output / Current output
    Digital output1 ... 2 x push-pull: PNP/NPN
    Ambient temperature, operation–30 °C ... +55 °C, Uv ≤ 24 V
    Light source

    Laser, red

    Laser, infrared

    Type of lightVisible red light / Infrared light
    Laser class

    2 (IEC 60825-1:2014)

    1 (IEC 60825-1:2014)

    • 1) Continuous change of distance in measuring range.
    • 2) Depending on the set speed: Super Fast ... Super Slow.
All technical data can be found accompanying the individual product