Skip to content

No. 1 supplier of ultrasonic tank monitoring devices in Europe with 

over 5 million devices in the field.

Tekelek, now part of Rochester Sensors, is a global company specializing in the design and manufacture of the very best in ultrasonic, pressure and radar level measurement instruments and remote smart monitoring solutions – both ATEX and Standard.

We provide hardware solutions for the control and transmission of level and condition measurement for a variety of applications. These devices can be monitored/controlled using hard wired or wireless technologies incorporating GSM, Broadband, ISM band, or more recently LoRaWAN and CAT-M1/ NB-IoT communication techniques.

From our bases in Ireland, USA, and Asia, Tekelek proudly serves the oil & gas, LPG/Propane, chemicals, water, waste, fertilizers, additives, agri-food, and other industries and has done so for more than 28 years. We have built and deployed more than 5 million Tekelek monitors on tanks, IBCs, barrels, drums, piped networks, and more, in 40 countries, across 6 continents.
We help our customers by providing real-time data facilitating smarter decision-making creating leaner, more agile businesses with up to 30% savings by optimizing efficiencies.

Our high performance is based on industry experience and customer commitment. We pride ourselves on our client focus, the certainty of performance, and the ability to meet changing client/technology needs. This is what drives us to continuously exceed our customer’s expectations.

Our History

Why Choose Tekelek?

Building a case for Tekelek’s tank technology solution is easy as adding real-time tank level information opens doors to operational efficiencies, better customer service, and greater market share with average cost-saving benefits of 20% – 30%.

Here are some ways tank monitoring technology will benefit your business:

Tekelek are at the forefront of remote monitoring technologies with extensive expertise and experience.

We offer:

  • Integrated Solutions
    Measurement / communication functionality in one package
    GPS + Level Measurement in one device
  • Multi-connectivity Wireless options
    Ability to connect to multiple platforms incl. 2G/3G, CAT-M / NB-IoT, LPWAN – LoRa/Sigfox, Wi-Fi/Internet modem-based and RF communications
    Eliminate Satellite charges
  • Customized Design
    Agile development solutions for specific customer requirements
  • Proven
    Robust and Ultra-Reliable technology at Competitive Pricing
  • Smart Sensing Functionality
    Configuration, alarms, alerts, on-board diagnostics


  • World leaders in ultrasonic measurement technology
    Best in class ultrasonics
  • Hardware is Highly Configurable
    Can be redirected to other backend
    Alarm configurations
    Schedule adjustments
  • Battery Management
    Typical battery life >5 years (GSM), minimizes field service requirements
    Battery life >10 years on some products (LoRa)
  • Multiple Connectivity Options
    The industry’s broadest range of communications options
  • White Label / Private Label Options
    Custom developments

Finally, Experts for your issues and questions. Our knowledgeable team members are there to help identify the best solution for individual circumstances.


Tekelek enables smart and sustainable solutions.

As our valued customers in more than 60 countries worldwide strive to address sustainability and environmental challenges, Tekelek is committed to providing responsibly designed, sourced, and manufactured level measurement and Industrial IoT solutions to drive business efficiencies and enable informed, sustainable decision making.

Sustainability is fundamental to our operations. To develop the best possible products in the most efficient way possible, Tekelek actively follows the reuse and recycle process in the design and manufacture of devices to ensure less waste. The best materials are sourced in product production to ensure the least environmental impact, product longevity, and the utmost product recyclability. At Tekelek, we optimize our supply chain structure to reduce our environmental footprint and are committed to meeting or exceeding the compliance requirements of all applicable product certification regulations.

Over many years, we have implemented programs to enhance sustainability at our factories and improve efficiencies in our business, from reducing and recycling our waste to converting our offices and factories to LED lighting, installing solar PV panels, introducing EV charges and more.

Our commitment to an improved environment continues in how we operate daily. We make deliberate efforts every day to be as environmentally conscious as possible and to allow you to accurately monitor, measure and improve your business efficiencies.

Our Locations

Company Vision, Mission & Values

Our vision, mission and value statements are the driving forces behind our organization.


  • Verizon
  • RED
  • EMC
  • FCC (USA)
  • Swisscom ISED (Can)
  • LoRa Alliance
  • ISO/IEC 27002 Information Security
Print Friendly, PDF & Email