



UNIQUE FIRE MONITORING CAPABILITY WITH BEST DETECTION PERFORMANCE
Unsurpassed quality and reliability bring you peace of mind and lower cost of ownership
A blazing fire can have devastating consequences: risk to human life, damage to valuable infrastructure and assets, and long downtimes. A proper fire protection installation is made more complex when the area is affected by harsh environmental conditions. Industrial facilities frequently produce dirt, dust, humidity and corrosive atmospheres in the production, storage or transport of goods. Conventional sensor technology often fails and tends to produce false alarms. Some of the costs of false alarming include, for example, activating the deluge or high-expansion foam fire suppression systems in aircraft hangars. These technologies also require periodic, time-consuming maintenance efforts.
AP Sensing’s unique Linear Heat Detection (LHD) solution reduces operational costs and offers maximum reliability even under severe conditions like:
Dirt, dust and corrosive atmospheres
High humidity and extreme temperature changes
Solvent vapors and radioactivity
Electromagnetic interference (EMI)
Explosive environments due to gas or dust (ATEX / IECEx)
DISTRIBUTED TEMPERATURE SENSING
Our solution is thoroughly tested and certified (VdS EN 54-22, UL521, ULC S530, FM 3210, ATEX II(1) GD M2, KFI, CCC, SIL2) with the industry's fastest fire detection and lowest false alarm rate. Our Distributed Temperature Sensing (DTS) system detects fires precisely and can accurately track the size and direction of a spreading fire, regardless of air currents. No other fire detection system can withstand temperatures up to 750 °C (1382 °F) without losing monitoring capabilities. With this unique feature, fire-fighting countermeasures can be used effectively during the fire event. Our solution includes besides the interrogator unit certified and maintenance-free sensor cables to fit your requirements.
The fiber optic-based LHD has multiple advantages in comparison to conventional fire detection systems or non-fiber optic LHD. One single passive fiber covers a long range up to 10 km, whereas traditional solutions would need many sensors as well as individual systems. The high sampling interval is less than one meter, which permits quick activation of countermeasures in an emergency situation. Because of its low laser power, AP Sensing’s LHD is well-suited for hazardous environments such as those found in chemical plants, coal storage facilities, mining conveyor belts, or other facilities requiring ATEX/IECEx certification. It is easy to integrate into existing fire alarm systems and can be utilized either as an alternative or an enhancement to existing fire detection systems. LHD enables early identification of rate of heat rise, and therefore detects heat abnormalities earlier than other technologies, with discrete trigger points at a higher temperature. Based on temperature delta, our LHD system differentiates between fire and temperature increases due to seasonal changes. Thanks to the distributed fiber optic technology, linear heat monitoring enables gapless monitoring and complete asset coverage.
SMARTVISION™
AP Sensing's SmartVision software provides a visual overview of alarm zones, operational status, and real time temperatures at a glance, controlled by an easy-to-use graphical interface (GUI). Monitored assets and facilities are mapped and color-coded to show the measured temperatures, alarm zones and fire locations, as well as fire size and spreading. Alarm zones can be individually defined for flexible alarm levels and types. SmartVision seamlessly integrates many sensors, such as Distributed Acoustic Sensing (DAS), DTS, CCTV and others, into a single platform.
With a proven track record and continued innovation, AP Sensing offers a completely integrated, end-to-end solution made in Germany. Our team works together with you to select the right combination of technologies to fit your requirements. We also provide onsite services, hotline support, maintenance and product trainings.
APPLICATIONS
Our solutions offer robust and reliable asset protection for various application areas, including:
Road and rail tunnels
Metro stations
Parking garages and aircraft hangars
Conveyor belts and production areas
Cable trays and transformers
Bus ducts, data centers, and false floors and ceilings
Tank farms
Coal storage, battery storage and warehouse facilities
Refineries and chemical plants
Offshore platforms and power plants including NPP
- COMMITMENT
- RELIABILITY
- QUALITY
- EXPERTISE
OUR KEY FEATURES FOR FIRE DETECTION
Why you should choose AP Sensing!
Feature | Benefit |
---|---|
Fiber optic Linear Heat Detection | ...continuous and continual fire detection along the entire sensor cable length up to 10 km! |
Immune to EMC and RFI | …advantageous for tunnels, cable trays, transformers and generators. |
Inherently safe operation in explosive environments | ...ideal for mining, refineries, plants, tank, conveyor belts and silos. |
Lowest maintenance requirements | …ideal for cable deployment in areas such as false floors and suspended ceilings. |
Immune to harsh environmental conditions including nuclear radiation | ...ideal for industrial applications like petrochemical plants, factories, cold storage, waste disposal and nuclear power plants. |
Wide range of certifications like VdS, UL and FM | ...conforms to all the important national and international regulatory frameworks. |


FIRE DETECTION DOCUMENTATION
Fiber optic linear heat detection

Download Fire Detection information in the language of your choice:
AP SENSING SUCCESS STORIES
We have hundreds of satisfied customers worldwide!
Quotes
Digitization is the driver for quality, capacity and efficient railway operation for DB Netz AG. Fiber Optic Sensing is an outstanding technology that enables the improval of infrastructure capabilities at lightspeed compared to other solutions using existing cable infrastructure. AP Sensing is taking FOS-based railway monitoring to the next level with their true phase-based system and the extensive use of AI. We’re happy to work in collaboration with AP Sensing’s responsive and innovative team, helping us to get projects moving and getting FOS integrated in the daily railway operation.
AP Sensing's support team has been a fantastic resource for us over the years. They have helped us with system development and implementation planning, and they are always quick to respond to our technical queries with competent advice and helpful tips.
For me AP Sensing is the forerunner for distributed optical temperature sensing. You can see in their solutions a combination of experience and creativity -- an intuitive design that works just as you'd expect, yet they aren't afraid to think out of the box, or provide a customized solution. They carry on their HP/Agilent heritage and continue to develop and advance, while remaining true to their core values of quality and reliability.
When I think of AP Sensing the first thing I think of is reliability. We completely trust and rely on their performance specifications and I know that their technical support team is dedicated and passionate about solving any problems that might come up.
Knowing the technology and market, it is evident to me that AP Sensing is the forerunner in distributed optical sensing. Their solutions reflect a combination of experience and creativity. Experience comes from their HP/Agilent heritage, the leader in test and measurement equipment, with decades of experience in developing and manufacturing extremely reliable and high quality products. The creativity comes from their passion and commitment to solving real customer problems.
When you do business with AP Sensing you get the feeling that you are working together as partners, because they listen to you and understand the challenges of your day-to-day operations. Communication with AP Sensing is always professional and it's obvious that they have the experience and the technical know-how to answer our queries.
AP Sensing's DTS is simply the best fit. We apply it together with ConveySafe in our coal power plants to protect our conveyors. The systems are rugged and completely reliable, need very little power, and can be seamlessly integrated into customer SCADA environments. Best of all, you don't just buy a box from them and that's it -- their post-sales support is outstanding.
The SIL-2 (Safety Integrity Level) rating that AP Sensing has achieved on its DTS gives us the confidence that their solution is going to work as planned, day in and day out, in high-risk environments. Our LNG terminal operators sleep better at night knowing that our assets are protected and security standards are met.
My AP Sensing regional customer support is fantastic: competent, thorough and quick to get back to me. They have been a key player in our complex pipeline projects over the years, and they truly offer through-life product support, from installation and commissioning to training.
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Do you have a question about our fiber optic sensing solutions? Please call or mail our multilingual, experienced team:
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