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LS-400 laser sensor

The LS-400 Series is a digital lasersensor with different separated heads.

Laser heads

The LS series uses a highly focused and concentrated laser beam and a coaxial optical lens system to enable it to detect extremely small objects a long distance away. Choose from ultracompact sensor heads as a reflective light barrier with a polarisation filter or as a reflective sensor with a light spot or light band.

The LS series is particularly suitable for monitoring or detecting extremely small objects on a conveyor belt, for monitoring the sizes of objects and for monitoring edge positions in industrial production.


  • Retroreflective: coaxial lenses with polarized filters
  • Reflective types: spot type and line type
  • Red light laser diode laser class 1 or 2
  • Laser focus and line adjustable
  • Ultracompact size


  • Mounting bracket
  • Lens LSMR1 for line reflection type


A jog switch and mode key allow you to conveniently program all controller functions; programming is easy with a dual, two-colour, 4-digit LCD display and several LED displays. The LS series' M.G.S. function, which allows the receiving sensitivity's dynamic range to be adjusted to prevent oversaturation of the reflected light intensity (transparent objects in the case of reflective light barriers or shiny objects in the case of reflective sensors, for example).


  • Double 4-digit display for current and threshold values
  • Mode key and jog switch for simple adjustment
  • Response time max. 80µs
  • Four output modes
  • Timer
  • Cross talk prevention
  • External teach-in (cable type)
  • Key lock function
  • External switch off of laser beam
  • Side-by-side mounting with FX-300 series possible
  • Cable or connector types


  • Main and sub cables for side-by-side mounting (1 / 2 / 5 m)
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LS-400 applications Panasonic Industry
  • Interference prevention
    The automatic interference prevention function protects against interference among up to 4 sensors.
  • Emission halt function
    Using the emission halt function, the laser beam can be stopped via external input, e.g. when a spot appears within the visual range of an image processor.
  • External teaching function
    Teaching can be conveniently performed externally for laser sensors installed inside a device.
  • IC pin check from remote position
  • Checking protrusion of glass substrate


Name File Type Size Date Language
PDF Brochure "Focus Automazione" Catalog, Shortform 3.1 MB 01.04.2022 Italian
PDF Brochure Capteurs Catalog, Shortform 32.5 MB 13.09.2021 French
PDF Catálogo Resumen Sensores Data sheet 29 MB 28.04.2021 Spanish
PDF Catálogo resumen - Gama de producto automatización industrial Catalog, Shortform 5.9 MB 31.08.2021 Spanish
PDF Data sheet LS-400 Data sheet 4.9 MB English
PDF Data sheet LS-400 Data sheet 1.6 MB Italian
PDF Datenblatt LS-400 Data sheet 1.6 MB German
ZIP LS 2D Data CAD 97.6 KB 06.11.2007
ZIP LS 3D Data CAD 783.4 KB 06.11.2007
PDF LS Bedienungsanleitung Manual 775.4 KB 01.07.2004 German
PDF LS Instruction Manual Manual 1.8 MB 01.09.2004 English
PDF LS-400 Digital Laser Sensor Amplifier Manual 758 KB 09.04.2024 English
PDF LS-403 Instruction Manual, ME-LS403 Manual 603.5 KB 09.04.2024 English
PDF LS-H Laser Sensor Head Instruction Manual, CMJE-LSH100 Manual 740.9 KB 09.04.2024 English
PDF LS-H Series Instruction Manual, MJE-LSH Manual 1.4 MB 09.04.2024 English
PDF LS-H-A Series Instruction Manual, MJE-LSHA Manual 1.2 MB 09.04.2024 English
PDF LS-HF Instruction Manual, MJE-LSHF Manual 1.4 MB 09.04.2024 English
PDF LS-HF-A Instruction Manual, MJE-LSHFA Manual 1.3 MB 09.04.2024 English
PDF Les essentiels - Produits d’automatisme, 6215eufr Catalog, Shortform 5.5 MB 16.06.2023 French
PDF Programma Sensori Catalog, Shortform 2.6 MB 11.01.2021 Italian
PDF RF-31, RF-33 Instruction Manual, CMJEC-RF31 Manual 366.6 KB 10.04.2024 English, Japanese, Chinese, simplified
Raccolta Applicazioni Sensori Data sheet 24.2 KB 20.12.2018 Italian
PDF Sensor Selection Guide for Packaging Industry Catalog 14.7 MB 12.07.2022 English
PDF Sensori Fotoelettrici Guida tecnica Data sheet, Technical information 1.9 MB 01.05.2006 Italian
PDF Senzory - Zkrácená verze Catalog, Shortform 10.1 MB 28.01.2013 Czech
PDF Short Form Laser Sensors Catalog, Shortform 2.4 MB 05.06.2015 English
PDF Short Form Sensors for Factory Automation Catalog, Shortform 32.7 MB 08.07.2021 English
PDF Top seller - Automation products, 6215euen Catalog, Shortform 2.6 MB 01.05.2024 English
PDF Übersicht Sensoren Catalog, Shortform 28 MB 05.05.2022 German
PDF Übersicht Topseller Automatisierungstechnik, 6215eude Catalog, Shortform 15.6 MB 24.04.2023 German