Who we are

Process Parameters Ltd, established in 2004, is dedicated to our customers needs and aims to provide products of excellent value for money backed by the highest levels of service and technical support.

We manufacture and distribute a range of temperature sensors, RTDs, IR pyrometers, thermal imaging cameras, data loggers and a range of other products. Our engineers and technical team are always here to discuss your application and are happy to help you with any product selection or improvement. Get in touch with us today.

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About The Team

Jonathan Apperley, Managing Director

Jonathan has worked in the Industrial Measurement and Control industry since graduating in 1994 with a Degree in Mechanical Engineering. Having worked in both temperature measurement and pressure control areas, a natural progression was to start Process Parameters in 2004. Jonathan has extensive application knowledge gained from many years of dealing face to face with a variety of customers in many different industries.

In his spare time, Jonathan quite literally has his head in the clouds as a keen pilot of gliders and light aircraft. He is currently working towards becoming a flight instructor in gliders.

Jonathan Apperley, Managing Director, Process Parmeters Ltd

Kathrin Setchell, Operations Manager

Kathrin grew up in Germany and has a degree in Process Engineering. She worked in FMCG for over 24 years before joining Process Parameters as Operations Manager. She is very much data-driven and is fascinated by the difference data can make when used responsibly to solve commercial, technical, or world challenges.

Her strength lies in mining information sources for the data stories to gain insights and delivering value by improving business processes.

Outside of work, Kathrin enjoys spending time with her family and friends, reading (a lot), and sailing.

Kathrin Setchell Operations Manager

Kim Heptinstall, Sales Coordinator

Kim brings extensive experience in team leadership, project management, and customer relations to Process Parameters. With a background in software product development and a proven track record in managing projects globally, Kim excels in delivering exceptional customer experiences.

His technical expertise and ability to communicate effectively at all levels make him a valuable addition to our team.

In his spare time Kim is involved in aviation, riding adventure motorcycles, cooking and music.

Headshot for Kim - Sales Coordinator at Process Parameters

Sharon Noctor, Administration Assistant

Sharon has a wealth of administrative experience having helped her partner with back-end office support for his business over the last 18 years, whilst simultaneously raising her family.

Previously, she worked as a Desktop Publisher at The Chartered Institute of Marketing (CIM) for 10 years and The Commonwealth War Graves Commission for 5 years. 

When she’s not at work, Sharon enjoys spending quality time with loved ones, whether it’s catching up with friends and family, indulging in delicious meals and drinks, or embarking on long walks in the countryside with her dog.

Sharon Noctor

Karen Livingstone, Marketing Manager

Karen has had a career in marketing that has spanned over 30 years split between corporate marketing in the IT Industry and being a freelance marketing consultant. She has an excellent understanding of business operations, project management, and communication channels. Results-driven, Karen prides herself in putting strategic plans in place to achieve the goals we have set for our business growth. She is then responsible for overseeing the implementation of the individual marketing activities and reporting.

Outside of work, Karen enjoys travel, pottering around in her garden and cookery. She also volunteers for Young Enterprise.


Jessica Martin, Business Strategy

Jessica is a senior commercial manager and business strategist having spent 20 years in the food and grocery industry developing and growing some of the nation’s best-loved brands including Heinz Salad Cream, Jacob’s Cream Crackers and Wall’s sausages before becoming a small business strategist in 2016. She has expertise in business planning, strategic marketing and sales generation. Jessica is also a trained executive coach, trainer and speaker.”

In her spare time Jessica enjoys travel, music, singing and spending time with her growing family.


Q & A

Process Parameters supply industrial manufacturing and R&D end users, Universities, OEMs and resellers.

Our client base covers a broad range of industries including Aerospace, Automotive, Biomass, Construction, Defence, Electronics, Food & Beverage, Foundries, Glass, Marine & Transport, Metals, Oil & Gas, Pharmaceutical, Plastics, Power Generation, Research & Development, Security, Waste and Wastewater. We are happy to work with customers from any sector.

Predominantly the UK & Ireland, but we also have customers across Europe, The Middle East, South East Asia and Australia. We welcome any overseas enquiry.

Process Parameters has been in business for over 14 years and served a broad range of clients from other small businesses to large blue chip companies and Universities. Our team has considerably more years’ experience in industrial temperature measurement and thermography.

Yes, we are certified to the ISO 9001:2015 quality standard by UKAS accredited ACS Registrars. Click here to download our certificate.

More than 95% of all the temperature probes we supply are made by us in our Maidenhead workshop. From sourcing the finest components, to hand made assembly techniques and TIG welding, we supply a comprehensive portfolio of fabricated and mineral insulated temperature sensors and pockets.

Our Distributorships include infrared temperature sensor and thermal imaging products from Optris, signal conditioning and wireless data logging systems from Nokeval and industrial instrumentation from Kobold.

As well as supplying a full range of standard probes, we offer a bespoke service and custom made to order. We can supply any design or style of sensor for all industrial process engineering applications. Whether it is an existing design that you are using or you have a new application that you require some assistance with, we can help you with product selection.

Yes, our temperature probes and non-contact infrared sensors are compatible with industry standard equivalents and can be purchased as replacements.

Yes, we offer both pre- and post-sales application specific free support for all the products we sell. We are happy to help you select the right product and our friendly team are here to help whenever you need it.

ISO9001 accredited logo

We are certified to ISO 9001:2015 quality standard by UKAS accredited British Assessment Bureau Ltd.

About Our Partners

Optris Logo

Optris GmbH has been developing and manufacturing innovative infrared temperature devices for non-contact temperature measurement, including thermal imaging camerasindustrial infrared pyrometers and hand held thermometers, for fifteen years.  The comprehensive product portfolio comprises infrared measurement devices for a wide variety of industrial applications as well as science and R&D. Along with free thermal analysis software, Optris products enable constant monitoring, control and optimisation of virtually every manufacturing process, along with resulting reductions in production costs.

Nokeval Logo

Founded in Finland in 1980, Nokeval Oy specialises in measuring temperature, humidity and other environmental parameters. The wide selection of products includes the OVA range of wireless data loggers and systems, wired temperature transmitterspanel meters, field displays, signal converters, galvanic isolators and temperature sensors. Investing heavily in product development, Nokeval are proud to offer the latest in product technology.

Kobold Logo

Founded in 1980, Kobold Messring GmbH is one of the leading manufacturers of industrial instrumentation products. Expert in the field of industrial measuring and control equipment, Kobold offer their customers a comprehensive portfolio of equipment covering flow, pressure, level, temperature, humidity and more, which can be installed and used in various industrial processes.