Coltraco Commitment To :

  • Through-life maintenance support
  • We still maintain units built 20 years ago
  • Extend trade-in credits - replace old units for new
  • UL listing & ABS type approval - Portalevel™ MAX
  • ABS type approval & RINA approval - Portascanner™
  • Be a life-safety technology partner – Permalevel™
  • Certified OEM calibration & ODA service stations

Coltraco manufacture Ultrasonics That Work

Fire Protection Association London Summit 2017

Clare and our CEO exhibited at the FPA Fire Sector Summit held at the Royal College of Surgeons in London this week, and presented a paper to FPA delegates on the need to apply Mathematics in the Ungoverned Space of Fire Engineering, Pressurisation & Constant Monitoring of Gaseous Extinguishing Systems. We wish to thank Mr Mark Sennett of the FPA for his kind and fine arrangements. The Fire Protection Association is the UK's national fire safety organization working tirelessly to identify and draw attention to the dangers associated with fire.

Since its creation in 1946 it has accomplished an exceptional reputation for quality of work and expertise in all aspects of fire research, consultancy, training, membership, publications, risk surveying and auditing. The Fire Protection Association’s products and services are designed to assist fire fighters; security and safety personnel attain and uphold the very highest standards of fire safety management.

Read more about Coltraco and its partners in the blog.

The Fire Protection Association’s Technical and Risk Divisions provide diverse range of services that are related to testing, research, risk appraisal, risk assessment and consulting. Having specialized in these areas the FPA is now capable to offer specialized and commercial services that are tailored to your precise requirements in line with up to date law and order regulations, industry standards and codes of practice.

Their engineers, scientists and consultants can take over the challenges of fire and risk prevention. If you are in the need for an in depth understanding of fire behaviour and the consequences of poor risk management, Coltraco recommends you to contact FPA at your earliest. Working in collaboration with research companies, government institutions, trade institutions and the insurance community on projects of varying scale and complexity has given it the chance to strengthen its weakness and explore areas where no other company has stepped into.

Coltraco, a leading manufacturer of the world famous ultrasonic level indicator is proud to announce its business ties with the FPA. The sharing of knowledge and expertise between both companies has enabled to understand the risks in a better way and address them with effectiveness. Fire suppression systems play a pivotal role in keeping the people safe and secure within their perimeter. The collaboration of two successful companies has proven to be a blessing for their respective customers who can now get much better services with reliable results.

Supporting our customers directly in 108 countries!

As a global company we thrive on exporting around the world. We are always delighted when we succeed in new markets and welcome working more in the African continent in 2016-2017 with our network developing in Nigeria and elsewhere. We already have equipment in Angola operating with leading oil and gas EPCs and now pleased to add marine servicing companies to this. The success of our products has enabled us to expand over 108 countries and now we have managed to provide support to our customers directly where our devices are being used.

For more information about our support please refer to our distributors page.

The Rise of Coltraco

For many years Coltraco only manufactured 2 – 3 ultrasonic products. Out of these limited products, Portalevel and Portascanner gradually became world leaders. The Portalevel became famous for its remarkable results as an ultrasonic level indicator (of fire suppression systems). On the other hand, the Portascanner gained worldwide fame for being a flawless device when used for hatch cover maintenance and watertight integrity testing. Equipped with the latest ultrasonic technology, it became the very object to replace the traditional leak detection methods for ships hatch covers, Naval cable transit areas, offshore oil & gas watertight doors and scuttles respectively.

A Glimpse of the World Famous Portalevel

Here we introduce you the contents of packaging of our renowned ultrasonic level indicator

Dry Sensor

A standard sensor for all land based Portalevel units. The metal applicator is connected to the unit via 1 meter of ax cable and a BNC connector.


An infrared thermometer comes as standard. Designed with portability in-mind, this device is intended for monitoring cylinders in warm climates.

Main Unit

The main unit is protected a IP65 Enclosure and weighs just 500 grams. It has a LCD Numeric Display with LED Bar Graph and 4 touch button controls.

Ultrasonic Gel

Ultrasonic Gel is a brilliant agent for increasing the surface contact of the Sensor. Coltraco sensors have also been designed to work with water.

Extension Rod (Optional)

The Multi-Banked Extension rod comes as standard with the all Portalevel MAX Marine models. It is designed for testing the rows of CO2 cylinders 3-4 deep

US Navy Naval Sea Systems Command (NAVSEA) and Coltraco North America

Over 20 years ago the US Navy’s NAVSEA ordered 110 Portalevel units through Ascoa Fire Systems to meet their 1/8” accuracy requirement on High Pressure Halon systems. We are proud to support the US Navy. Portalevel is a state of the art ultrasonic level indicator. Its ability to withstand strain and still work flawlessly in extreme temperatures allows the buyer to use it accurately for a long time. The product has proven its durability and is at par as far as accuracy is concerned. The US navy is one of the busiest in the oceans and still serving after 20 years shows how long can a Portalevel last.

Read the news on Coltraco Blog here.


The Navy Naval Sea Systems Command (NAVSEA) is largest of the US’s five “system commands” organizations. It comprises of:

  • 4 Shipyards
  • 9 Warfare Centers (2 undersea and 7 on the surface)
  • 4 Major Shipbuilding locations
  • NAVSEA Headquarters located in Washington D.C

Its primary objective is to engineer, build and provide support to the US Navy Fleet in combat systems. It is one of the prized possessions of the US Navy and has proven to be a great resource in defending the country’s water territory and beyond.

Coltraco A Trusted Liquid Level Indicator Supplier

When there are tons of firearms onboard, you certainly need to keep a check on the fire safety systems. The 110 Portalevel units serving the US Navy have proven their worth in all conditions. However the units must be calibrated regularly to ensure their performance is up to date. When a ship is out in the oceans, there aren’t many options for survival if a fire breaks out. Damage can be reduced or controlled by the timely action of the fire suppression system. Be it a training drill or checking the pressure for a refill, the units provided to the Navy through Ascoa Fire Systems have successfully met their 1/8” accuracy requirement on High Pressure Halon systems.

Using the ultrasonic technology, Coltraco has come forth with the best range of liquid level indicator which not only serves military purposes but is also of great use in industrial sector. Over the years the product has undergone many enhancements to stay in lead in the niche and so far there isn’t any match of the Portalevel. We are proud of the fact that our products have proven their worth wherever they are being used no matter how long the buyer decides to keep them using.

Shipbuilders & Ship-repairers Association AGM at the House of Commons – Oct 2016

Our CEO had the honour to join the Shipbuilders and Ship-repairers Association (SSA) at the House of Commons for the Annual General Meeting in the month of October 2016 meeting fellow members and new professionals. As a successful business group we feel it s our duty to be engaged in meetings with people related to our niche. These meetings have not only helped us create valuable connections, but for many we are a valuable connection too. Over the years we have had the privilege to grow further and expand with the useful information we learn through the SSA meetings each year.
Read more about Coltraco meetings and activities in the blog.

About SSA UK

The Shipbuilders & Ship-repairers Association (SSA) is one of the fastest growing marine trade associations in UK. The diverse memberships include ship related devices and items manufacturers, ship builders, equipment manufacturers, ship services providers, people from research institutions and last but not the least shipyard owners and commercial boat builders. With people onboard from such diverse walks of life, the meetings serve a purpose and members benefit in many different ways in terms of business and even building personal alliances.

SSA was founded with the main aim to provide a platform where businesses in the marine industry can get support. The association supports the marine industry in improving performance business profile, introduce many new business opportunities, and introduce a legal and lawful channel to funding and share industry expertise. The association has organized numerous industry events and has successfully provided networking opportunities as well as holding national pavilions at many important marine industry exhibitions. The constant effort has made it one of the most successful business associations in the UK.

Coltraco Holds Significant Presence

Coltraco is a successful business and has been in the industry since 1987. Over the years it has successfully engineered some of the world’s leading devices such as the Portalevel an ultrasonic level indicator. The device has earned worldwide fame and is serving more than 20 countries at the moment. Some of our notable customers are the US and Canadian Navy. Our success is measured by the satisfaction of our customers shown towards our products.

We have successfully managed to replace the traditional liquid level indicator with our devices because not only are they accurate, but they never also work very well in extreme conditions. We have tested our devices in some of the most extreme conditions, the conditions we know they won’t be subjected to in the field. The results were remarkable and it strengthened our faith in them and we are now proud of our advancements and achievements.

Permalevel Load Weigh for Constant Mechanical CO2 Monitoring

For customers requiring low-cost, mechanical and simple CO2 monitoring Permalevel™ Load Weigh is our mechanical counterpart system to our Permalevel™ Multiplex system. Permalevel Multiplex delivers world-leading remote monitoring and remote diagnostics of clean agent extinguishing systems. The mechanical load weigh measures Carbon Dioxide manually inside single skinned containers. However it is always recommended to use an ultrasonic level indicator because with advanced technology there are rare chances of wrong readings. In case you get the measurements wrong, a lot of problems would be needed to set right. For customers we have introduced the low cost measuring device but it is advised to quickly shift to a more advanced device.

Read more about the news on Coltraco News

Coltraco is a world known brand to manufacture state of the art liquid and gas measuring devices. Since its inception in 1987 we have been in the business and are continuing to serve with dedication, passion and zeal. We have come a long way and have learnt a lot from our mistakes, experiences and even from the experiences of our huge list of customers. We have used the data to improve the performance and durability of our products. One of our best products includes the Portalevel range. This ultrasonic level indicator is serving many factories working various niches all over the globe.

We have partners in over 20 countries now which is a proof of the growing demand of our products. We have an extensive range of state of the art liquid level indicator that has proven its accuracy even in extreme conditions. As a matter of pride we mention that our units of Portalevel are serving the world’s most advanced Navy. Our units are working flawlessly and due to their unmatched performance more have been ordered and we are pleased to serve the great institutions. To provide fast and effective services to our customers of all products, we have distributors where our products are being used the most.

To find a distributor near you click here.

Have a look at our extensive range of Portalevel in our products section. We are confident you will find a device that would fulfill your requirements with perfection. Our products are durable and this is not something only we as manufacturers claim, you can read about how well they are performing in our blog section where we regularly update. Keep visiting our blog for more updates and to keep up with our activities.

Sea Safety Services USA – Tug & Barge Partner in the USA

It is with great pleasure that Sea Safety Services Inc. in the Port of New York is becoming our partners in the Tug & Barge market sector of the USA marine industry. Sea Safety have been using our Portalevel MAX Marine units for their marine servicing teams for many years and the wonderful Mr. Peter O’Shea of Sea Safety met with George and our CEO at SMM Hamburg 2016. Sea Safety is a distributor for Ansul Fire Protection, Kidde Fire Systems and NK Fire Systems.

Find out more of Coltraco News.

We are proud to introduce our 8th gen of the unbeatable, most advanced liquid level indicator up to date. We have successfully kept up with the time since our inception and it is due to our tireless efforts we are the market leaders when it comes to ultrasonic liquid level indicators. We are continuously expanding and new partnerships are being made all over the globe. We believe in sustainable growth and for this we strive to partner with successful businesses. Partnering with Sea Safety Services USA has opened new channels of growth and progress for the both of us.

We are pioneers of the ultrasonic level indicator and our range of Portalevel is unmatched and capable of handling the toughest task. It can measure almost any kind of container without fail. Our up dated version the 8th generation Portalevel is capable of meeting your requirements in any condition. We have rigorously checked and tested it in extreme conditions and the results were truly as per our expectations. As we move forward in the Hi Tech world of tomorrow, we are sure our products will be able to meet the demands of the future.

Ansul Fire Protection, Kidde Fire Systems and NK Fire Systems are famous for their effective fire suppression systems and Sea Safety Services USA’s partnering with Coltraco proves that we are market leaders in our niche. Our products are not only limited to the industrial sector but we have a large number of products serving the maritime industry all over the globe. Our popular devices are serving the Navy of many advanced countries such as USA, Canada and UK. It’s been years since they are making use of the devices and they have never failed these Hi Tech and most important pillars of their countries. We are proud of the effectiveness and sustainability of our ultrasonic level indicator devices.

Coltraco North America and Royal Canadian Navy

Coltraco North America is proud to announce that Portalevel™ ultrasonic liquid level indicators are now in service with the Royal Canadian Navy in both their Atlantic and Pacific Naval Bases in Halifax and Vancouver. We congratulate the team and wish the RCN Fair winds and Calm seas. Coltraco has been in service of producing ultrasonic measuring and leak detection devices since 1987. Over the course they have managed to help industries overcome liquid management issues through dedicated efforts to increase accuracy of the Portalevel which is an unmatched ultrasonic level indicator.

More news about the company can be read on the Coltraco News.

The Royal Canadian Navy

As per official release of 2015 about its fleet, it operates:

  • 1 Destroyer
  • 12 Frigates
  • 4 Patrol Submarines
  • 12 Coastal Defense Vessels
  • 8 Unarmed Patrol/Training Vessels
  • Several Auxiliary Vessels

To keep its fleet in perfect order and respond to any kind of emergency call, it was essential to maintain the vessels and other machinery under its flag. Using traditional maintenance methods was both time consuming and expensive. It is imperative to keep a constant lookout on the waters surrounding the country. With the addition of the latest ultrasonic level indicator by Coltraco, we are sure the Navy would be able to function more quickly and efficiently. It is a moment of pride for the company to announce their product was chosen among all the others. Choosing it above all others is a clear indication of its reliability and the ability to perform every task that was required by the Navy.

Portalevel is an ultrasonic technology powered handheld device which has the ability to measure huge amounts of liquid. Using its level sensing ability from the outside of the water tank, it is ideal for industries where sensitive liquids are handled or used. The liquid level indicator can be used to measure liquids and gases alike. It is the perfect device to measure single skinned containers irrespective of their size. The device is capable to handle it all. Over the years it has been upgraded to over its limitations and it is now completely capable to provide pinpoint accuracy even in extreme conditions.

Becoming a part of the Navy now raises its standard’s even higher than before and it is evident that this device can be used flawlessly on every industrial scale.

L&L Maritime and Coltraco North America

Coltraco is a famous manufacturer and marketer of liquid level indicator and ultrasonic level indicator products. Their widely known and much appreciated products include the Portalevel™ range and the Portascanner™ range which are based on ultrasonic technology for pinpoint accuracy in tests. Over the years Coltraco has come in alliance with many businesses and has employed a lot of talented people. It has always been a pleasure to work with skilled people who contributed in the growth of our organization.

Read more of this news

Being a UK based company we have expanded our reach to many countries over the globe and North America is one of them. Operating under the banner of Coltraco North America covers the US and Canada region so that businesses would benefit from a direct sales and service center owned and operated by us. Over a decade ago US NAVSEA purchased 110 units of Portalevel™ through our partner Ascoa Fire Systems. The handheld ultrasonic liquid level indicator was ordered to meet their 1/8” accuracy requirement on testing the agent in High Pressure Halon Systems. We are proud to say since their initial purchase the Royal Navy is using our product which is an undeniable proof of our product’s accuracy, durability and reliability.

It is with delight we announce that our reliable Portalevel™ has expanded its demand and is now serving the Royal Canadian Navy too. The units are designed to work flawlessly under extreme pressure and weather conditions. The units are operational in their Atlantic and Pacific Naval Bases in Halifax and Vancouver.

Read more Coltraco news

Calibrating your equipment annually or every 5 years? Regulation or recommendation?

We are often asked about calibration, why it is important, how often it should be done and why. The reason we know calibration to be important, and recommend its annual service is because our equipment is designed to improve safety and best practice, so ensuring the equipment used to conduct such inspections is necessary. But don’t just listen to us: our manufacturer’s recommendation is based on clear cut regulations. Under ISO 17025 standards for the calibration of any monitoring or measuring equipment, it must be at least once a year.

At Rolls Royce the test cell for their Trent XWB engines are calibrated every 3 months. In the gas industry, customers are recommended to calibrate their detectors every 6 months, especially if they are using them in confined spaces, in order to sure they are maintaining their accuracy as per technical specifications. There are serious consequences if customers do not value the understanding of their tools or equipment, which unfortunately renders them at risk.

But, what about 5 year calibration certificates? On calibration and as a manufacturer of quality, we are clear that it is unsound, unsafe and unprofessional to compete on calibration as some of our competitors are offering 5 year calibration certificates. We do not wish to contravene ISO 17025. Nor do we wish customers to believe that it is the manufacturer that dictates calibration standards, which is not the case. However, we do not force the customer do anything because it is up to their discretion – the key here is that we will not issue calibration certificates beyond a year.

When you buy from Coltraco, you have confidence in the longevity of your equipment, aided by our Coltraco Customer Care Commitment, including life-time support. In addition, we have set up ODA Service Centres worldwide, with more coming online in 2017, so you can send your equipment for its calibration locally. We always do something “over and above” to enhance the unit for customers and we have a wonderful reputation as a consequence.

For more information: ISO 17025 is an international standard for test and calibration labs. The manual is available online

Get in touch on This email address is being protected from spambots. You need JavaScript enabled to view it..


Coltraco North America and Royal Canadian Navy

We are proud to announce that Portalevel™ ultrasonic liquid level indicators are now in service with the Royal Canadian Navy in both their Atlantic and Pacific Naval Bases in Halifax and Vancouver. We congratulate the team and wish the RCN Fair winds and Calm seas.

US Navy Naval Sea Systems Command (NAVSEA) and Coltraco North America

Over 20 years ago the US Navy’s NAVSEA ordered 110 Portalevel units through Ascoa Fire Systems to meet their 1/8” accuracy requirement on High Pressure Halon systems. We are proud to support the US Navy.

L&L Maritime and Coltraco North America

We enjoyed a wonderful relationship with Christopher Loat for many years and wish him peace and happiness now that he has left working for Coltraco. Future enquiries for Coltraco North America, Coltraco™, Portalevel™ , Portamarine™, Poratlevel MAX and Portascanner™ should be directed to This email address is being protected from spambots. You need JavaScript enabled to view it. and through our official website


CEO Message

Integrity and Science Key to Our Culture of Performance

Dear Coltraco Customers, Strategic Partners and Distributors,

Integrity is our defining value. Performance is its consequence. We understand that our customers have choices, and how we perform determines whether customers choose us. Coltraco’s Code of Ethics does not merely require compliance with laws. It embodies a Commitment to positive behaviours that build trust, promote respect, operate with distinction, with courtesy and global levels of performance, demonstrating our integrity and delivering customer performance.

We honour our commitments, communicate transparently, and act with honour. Ethics are the foundation of our performance culture and our science-based approach. We lead in specific technologies delivering the watertight integrity monitoring of marine structures and the monitoring of fixed liquefied gaseous fire extinguishing systems and the room integrity of protected space to ensure agent hold-times post-installation. We show this by our understanding of the science in them and the mathematics that explain them.

I would like to thank you for your business and for the relationships with our Customers, Strategic Partners, Distributors and ODAs who we value so highly.

My kindest regards,

Carl Stephen Patrick Hunter BA(Dunelm) Hon DSc FRINA FIMarEST MRAeS
CEO & Managing Director
Coltraco Ultrasonics Limited
46-47 Mount Street, Mayfair, London W1K 2SA
United Kingdom

Tel:  +44 20 7629 8475
Fax: +44 20 7629 8477

Call Now : +44 207 629 8475


References in PDF Format


Underwriters LaboratoriesUnderwriters Laboratories


Reference Alpha Fire UK Portalevel MAX Sept 2012

Reference Portascanner-II CSD MOD Albion and Bulwark





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