About Sentek


Established in 1991, Sentek Ltd is a well-known producer of electrochemical sensors. These devices can be used in both industrial and laboratory settings. Some of the units we can provide include (but are not limited to) electrodes, cables and connectors, OEM sensors, and numerous conductivity-related accessories.

Our manufacturing facility is fully ISO 9001:2015 certified and above all, we adhere to stringent quality standards. When reliability counts, Sentek is here to help.

Our team have experienced numerous achievements since we were initially established. In 1991 we launched with our comprehensive range of products for laboratory and industrial settings. Thanks to early success we acquired a new Braintree facility in 1994. This enabled us to undertake more complex manufacturing processes, addressing changing customer and research needs.

In order to meet increasing consumer interest, another plant was opened in Fife during the early months of 2000. While this was sufficient at the time, an increasing amount of demand from OEM customers required us to once again expand, adding to the interior space of our Fife production facility in 2008.

Thanks to the growth of Sentek as well as our flexible services, the company has tripled in size since 1998, and we continue to expand as the needs of our customers evolve over time.

Our Products

meeting the needs of the market


Products include pH, reference electrodes, steam sterilisable, autoclavable pH electrodes, metal electrodes (ORP), conductivity cells, ion selective electrodes, temperature probes and dissolved oxygen.

Sentek Ltd has always taken a great deal of pride in our ability to meet the needs of numerous market sectors including research and production facilities, hydroponics, freshwater management, water treatment, agriculture, health and medicine, the food industry. As well as industrial applications such as leak detection and determining the efficiency of certain rinsing procedures.

Shop Now

continuous improvement


Sentek Ltd will earn full customer satisfaction in the performance of Company Product and Service, whilst adhering to deals made with customers and to respect business confidentiality entrusted in the Company. Our activities will allow us to maintain, and to carry on improving the financial position of the company.

We regularly measure customer satisfaction and undertake improvement actions by applying the following Quality Management Principles:

  • Understand customer’s needs and requirements which should always be met or exceeded
  • Establish unity of purpose and direction in running of the company
  • Provide product and services that are consistently and reliably in compliance with customer, company, regulatory and legal requirements
  • Nurture, through training, communication and teamwork, every employee to contribute to continuous improvement within the business
  • Our quality management system, ISO9001:2015 provides the framework for ensuring we deliver on our quality objectives

Contact Us



Our team of probe manufacturers provide several different products. Each of these has been designed to suit unique applications. For instance, we have developed specific electrodes for field uses while others are engineered for laboratory settings. Thanks to a wide range of options, customers can select the appropriate model to address areas such as:

  • Cosmetics
  • Blood products
  • Dairy products
  • Soil
  • Fats and creams
  • Alcoholic beverages

we offer willingness and flexibility

Our Commitment to You

The Company is committed to improving our products and service and continue to launch new products to the market to meet customers demands.

To meet the needs of the market, we offer all our standard range with S7 caps, so that customers with more than one type of instrument (using different plugs) could use the electrode merely by changing cables. The biggest success for Sentek is their willingness and flexibility to provide probes to customer design. A large percentage of the business is producing probes for manufacturers of pH, Conductivity, and DO2 meters, some of whom are the largest in the business worldwide, with a further percentage is producing specifically to a customer’s design.

Whether it be a different plug, longer probe, longer cable, different colour cap, or a name other than Sentek on the probe, we can and will do it to satisfy a customer’s wishes. If anything is required which is different from the probes shown in our catalogues, do please contact us, we’d be happy to help.

Get in touch

Reasons to work with us

Technical Performance

Our intensive R&D efforts make sure that we can keep our customers served with a state of the art sensor.

Commercial Stability

Sentek endeavours to deliver on time and provide a stable pricing platform so that customers can plan with confidence.


Our customer service and technical back up, ensure that our customers feel secure in the knowledge that Sentek will always provide first class after sales support.

Project Planning

Sentek routinely works with customers to ensure that new requirements are properly specified and we take an active interest in the early stages of projects to make sure of success.

Quality & Expertise

Sentek has been providing bespoke and innovative electrochemical solutions since 1991. This level of industry expertise enables us to provide our growing number of customers with a bespoke level of continuous quality improvement.

Customer Satisfaction

We continually strive to meet the diverse requests of our customers. The safety of our customers is a priority when using our products and as such we provide continual education and customer support free of charge.


ISO 9001 Certificate

We are ISO9001 certified in the scope of the manufacture of electrochemical sensors.

Download a copy

Copyright 2024 Sentek Limited. All Rights Reserved.

Marketing by Unity Online