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About Rayleigh Instruments

The Business

We are manufacturers and stockists of an extensive range of energy monitoring products including current transformers, kilowatt hour (kWh) meters, multifunction power monitors, measuring transducers, data loggers, communication interfaces and software. Our instrumentation products include analogue and digital square din switchboard instruments. We also stock safety, temperature, pressure, relays and timing products.

Our design and manufacturing facility produce a number of products for railway rolling stock including door systems and buttons, audible devices, illuminated displays, speed controllers and thermostats.

Established in 1964 we have become one of the leading manufacturers and suppliers of process control instrumentation equipment in the UK.

The Company

  • Name : Rayleigh Instruments Limited
  • Head Office : Raytel House, Cutlers Road, South Woodham Ferrers, Chelmsford, Essex CM3 5WA. UK
  • Telephone : +44 (0) 1245 428 500 (General Enquiries)
  • Telefax : +44 (0) 1245 428509
  • e-mail :
  • Internet :
  • Established : 1964
  • Company Registration No : 808961 - Registered in England at above address.
  • VAT No : GB 394 9607 00
  • Directors : D. G. Brookes (Managing), R. Lawrence (Chairman)

Raytel Group Limited   A Raytel Group Company

Quality Policy

Our Aims

Our Vision :

To be recognised as a world leader in the following categories providing innovative solutions that enable our customers to gain commercial advantage:

  • Energy monitoring
  • Control & Instrumentation
  • Renewable energy generation and storage
  • IOT monitoring and control software

Our Mission :

To offer our customers top quality competitively priced products and systems, with the best possible technical and customer support.

As well as offering a wide range of standard items from stock, we can also provide bespoke solutions through our design team which can help our customers gain advantage over their competitors.

We have established a Strategic Plan and business objectives that are documented, measurable, and relevant to our quality management system and to our Quality Policy. These are communicated at all levels within the business, and are monitored and measured regularly to ensure growth, innovation and continual improvement.

We operate within and conform to the necessary Directives, statutory and regulatory requirements, and to the requirements of ISO9001 as certified through BSI, certificate registration number FS12165.

We want our customers, and potential new customers, to receive the best possible care, attention, and experience when making contact with us. We aim to do this by focusing all staff on how to handle enquiries professionally and efficiently in a way that satisfies or even exceeds our customers’ expectations.

We believe that the above words outline our commitment not only to our own business growth, but also to our customers’ so that we can all work together to our mutual benefit well into the future.

Our Values


  • Deliver what we promise
  • Be Trustworthy
  • Compete fairly
  • Do not improperly influence others or let them improperly influence us
  • Be honest


  • Take pride in what we make and do
  • Have complete focus on ensuring total customer satisfaction
  • Act with a sense of urgency
  • Achieve excellence by taking responsibility for getting it right
  • Take ownership for getting it done


  • Treat others with respect
  • Utilise the talents of our team
  • Strengthen our team by training and recruiting the best
  • Collaborate with employees, suppliers and customers
  • Earn trust of others


  • Be committed to Rayleigh Instruments success
  • Protect the health and safety of others and ourselves
  • Are personally accountable to reach our goals
  • Insist on the highest standards


  • Prevent waste by minimising the use of materials, energy and water
  • Minimise the impact of our business on communities and the environment
  • Develop better systems that integrate and optimise resources and reduce our environmental impact
  • Comply with environmental laws and regulations, and expect that our suppliers to do the same

Full statement and business manual available on request.

Links and Affiliations

To see a comprehensive list of our Links and Affiliations please Click Here