Mini sensor

The mini sensor is the smallest sensor for continuous fill-level monitoring and functions in accordance with the Reed chain principle. It is particularly suited for use in confined spaces and with small containers. Using very small floats, measurements can be carried out practically to the bottom of the container. Reed Electronics has a large range of materials and components and will find the right solution for your application.

The tried-and-tested miniature sensors are used, for example, to measure residual fluids in analytical instruments or in the chemicals industry, meaning that a process can be automated and optimised.

  • Miniaturised sensors
  • Enclosed and robust Reed chain
  • Customer-specific production with no minimum order quantities
  • Wide range of materials
  • Customer-specific electrical and mechanical connections
  • Measuring grid resolution of 5 mm
  • Available in an optional food design (electropolishing process)
  • Available in an optional EX design
  • Can be combined with temperature switches or PT100 / PT1000
  • Reliable
  • Free from wear and tear and no maintenance required
  • Simple installation
  • No programming necessary


  • Mechanical connections

    G1/8", G1/4", G3/8", G1/2", G1"
    (optional incl. counter nut)

  • Mechanical materials

    PVC, PP, PVDF and stainless steel

  • Float materials

    PVC, PP, PVDF and stainless steel

  • Float dimensions

    Ø 16–27 mm

  • Tube dimensions

    Ø 8 mm

  • Sensor length

    100–1,000 mm

  • Installation types

    From the inside, from the outside or an inverted installation

  • Installation position

    Max. 30°

  • Section of measurements

    100–1,000 mm
    (dependent on the float and the grid dimensions)

  • Measuring grid

    5 mm

  • Electrical connections

    Socket, cable, plug-in connector or as per a specific customer request

  • Socket materials

    Aluminium and polyamide

  • Cable materials

    PVC, PUR, silicone, Teflon, FEP or as per a specific customer request

  • Output signal

    Resistance Ω, Current 4–20 mA, Voltage 0–10 V

  • Temperature range

    -20°C to 110°C
    (dependent on the float and the materials)

  • Pressure range

    Must not be used as a safety-relevant limiting device within the pressure range.
    P max. upon request; the pressure range is always dependent on the float..

  • Protection class

    Up to IP68

  • Approvals

    EX design, food (electropolishing process)

  • Assembly

    Can be installed in assemblies

  • Note

    The sensors are based on a modular design and can be assembled individually.

    The Reed switches used are also enclosed in individual plastic housings to ensure greater robustness.

Peter Schmid
Technical Sales

Contact us.

We will find the right solution and would be happy to provide you with advice.


Request offer

How can we help you?

Send us an enquiry or call us by phone

  • My request

  • My contact details

  • This field is for validation purposes and should be left unchanged.
Ihr Webbrowser ist veraltet. Aktualisieren Sie Ihren Browser für mehr Sicherheit, Geschwindigkeit die optimale Anzeige der Seite.
Browser aktualisieren