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VISIC50SF smoke detector
New

Early and reliable fire detection in tunnels

Office situation support
Have questions about this product?

VISIC50SF smoke detector
New

Early and reliable fire detection in tunnels

Office situation support
Have questions about this product?

Benefits

  • Perfect addition to temperature cables thanks to earlier and faster detection
  • High levels of reliability and operational safety
  • No need for protective measures during tunnel cleaning
  • Immune to gantry fog
  • Flexible connection options, easy to extend and integrate into existing networks
  • Low level of effort due to simple mounting and quick commissioning
FLEXible answers to individual needs
Current product

VISIC50SF smoke detector

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  • Specialized products
  • Designed for demanding applications

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
Variable
Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Product information

Specifications
Measuring / Application task Visibility
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Description

The smoke detector to ensure fast and reliable smoke detection when tunnel fires occur. There is no need for alignment or parameter setting. With its IP6K9K enclosure rating, the VISIC50SF is able to withstand harsh ambient conditions inside the tunnel, also tunnel washing operations. During the design phase, particular importance was placed on ensuring reliable operation and long maintenance intervals. There is an optional version available with heating for fog evaporation.

Field of application
  • Cold smoke detection in road tunnels for early fire detection
  • Smoke detection in areas with corrosive environments


Device properties:

  • Visibility (K value) measured according to the scattered light measurement principle
  • Highly available – no moving parts
  • Quick and reliable smoke detection
  • Software developed in accordance with EN 61508 (SIL1)
  • Low faulty alarm rate
  • Fog evaporation through integrated heating element (optional)
Benefits
  • Perfect addition to temperature cables thanks to earlier and faster detection
  • High levels of reliability and operational safety
  • No need for protective measures during tunnel cleaning
  • Immune to gantry fog
  • Flexible connection options, easy to extend and integrate into existing networks
  • Low level of effort due to simple mounting and quick commissioning
Downloads
Most downloaded
Operating Instruction (BA)
VISIC50SF Smoke Detector in Tunnels
English version - 01/2025
Download
Competence Brochure (CP)
Verkehrssensoren Lösungen für die Verkehrs-
und Tunnelsicherheit
German version - 03/2026
Download
Ex Safety Instruction (XA)
Safety Information for non-Ex analyzer devices
(multi-lingual, also in DE, BG, CS, DA, EL, ES, ET, FI, FR, HR, HU, IT,
LT, LV, NL, NO, PL, PT, RO, RU, SK, SL, SV)
English version - 01/2025
Download
All downloads
13 Downloads
Operating Instruction (BA)
Most downloaded
VISIC50SF Smoke Detector in Tunnels
English version - 01/2025
Download
Ex Safety Instruction (XA)
Safety Information for non-Ex analyzer devices
(multi-lingual, also in DE, BG, CS, DA, EL, ES, ET, FI, FR, HR, HU, IT,
LT, LV, NL, NO, PL, PT, RO, RU, SK, SL, SV)
English version - 01/2025
Download
Competence Brochure (CP)
Emission Monitoring Solutions Broad portfolio and long-standing experience
English version - 05/2026
Download
Competence Brochure (CP)
交通用センサ 道路およびトンネルの安全ソリューション 道路およびトンネルのセンサに関する概要パンフレットであり、過
去60年間の開発の経緯、トンネルの前方および内部での主な用途、
そして測定装置の一覧が紹介されています。
Japanese version - 10/2025
Download
Competence Brochure (CP)
Solutions for traffic and tunnel safety An overview brochure about traffic and tunnel sensor, their
development during the last 60 years, the main applications in front
and within a tunnel as well as the measuring devices at a glance
English version - 04/2026
Download
Competence Brochure (CP)
Soluzioni per il monitoraggio delle emissioni Soluzioni per il monitoraggio delle
emissioni
Ampio portfolio e vasta esperienza
Italian version - 05/2025
Download
Competence Brochure (CP)
Lösungen zur Emissionsüberwachung Breites Portfolio und langjährige
Erfahrung in Gasanalyse und
Durchflussmessung
German version - 03/2026
Download
Competence Brochure (CP)
Most downloaded
Verkehrssensoren Lösungen für die Verkehrs-
und Tunnelsicherheit
German version - 03/2026
Download
Competence Brochure (CP)
排出ガス監視ソリューション 幅広い製品群と長年にわたる実績 排出ガス監視、測定原理と技術、国際的な要件とサービス、選択ガイド、そして測定装置の一覧をまとめたパンフレット
Japanese version - 09/2025
Download
Innovation (IN)
VISIC50SF – トンネル内の火災を早期に高い信頼性で防止する煙検出器 VISIC50SF煙探知器は、トンネル火災発生時に迅速かつ確実な煙検
知を実現するために、高速測定機能を備えています。
Japanese version - 10/2025
Download
Innovation (IN)
VISIC50SF – Smoke detector for early and reliable fire protection in a tunnel The VISIC50SF smoke detector offers high-speed measurement
to ensure fast and reliable smoke detection when tunnel fires occur.
English version - 12/2025
Download
General Station Description (GSD)
General Station Description (GSD) - VISIC50SF - PROFIBUS DP Any, PROFIBUS System, Any
Language neutral - 03/2026
Download
General Station Description (GSD)
General Station Description (GSD) - VISIC50SF - PROFIBUS DP Any, PROFIBUS System, Any
Language neutral - 03/2026
Download

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