About Us

Monitoring Assets, Delivering Data, Bringing Control


At HWM we design and manufacture monitoring and telemetry equipment for water, wastewater and gas networks, together with telemetry AMR and facilities optimisation products.

Our primary focus for over 40 years has been clean water and network distribution system monitoring, however in the last few years we have expanded into new sectors which include gas, water and electricity meter consumption, gas network monitoring and sewer, river and flood monitoring. Our solutions have had a significant impact in helping our customers save time, effort, natural resources, energy and cost.


HWM Product range

Water Network Monitoring - Flow, pressure, and other parameters, battery powered telemetry monitoring, pressure control and leak detection

Waste Water MonitoringLevel, flow, and other parameters monitoring via Intrinsically Safe (ATEX) rated battery-powered telemetry

Gas Network Monitoring - Network monitoring, Regulation station monitoring, flow monitoring via Intrinsically Safe (ATEX) rated battery-powered telemetry

Automatic Meter Reading - Water, Gas, Electricity

Facilities OptimisationEnergy monitoring, Building performance, Temperature, Humidity, CO2 Legionella compliance, lab facilities monitoring

HWM incorporates the successful product ranges of Palmer, Radcom and Radio-Tech to produce some of the world's most advanced, accurate and easy to use wireless monitoring and measuring equipment. 

Our manufacturing facilities and head office are based in the UK, with a sister company ASL based in Northampton .We also have offices in the USA (where we are known as FCS) and in China.

Total Solutions

Our combined experience, technical expertise and unrivalled technology have made us world leaders within the water and energy management industries with a reputation for innovation, quality and service. With over thirty years experience we are committed to delivering an outstanding return on investment to utilities, contractors, consultants and facilities managers.

HWM can offer the complete turnkey solution including installation, data delivery exports and viewing platforms, enabling reliable meter reading and energy management.

Our Customers

Our customers include most major UK utility providers, facilities managers and numerous large scale export projects. We are delighted to be framework suppliers for most UK water companies and many commercial organisations.

Global Distribution Network

Throughout our history, we have established solid working relationships with strategic partners and distributors. 

We currently have an international distribution network of authorised distributors that cover all continents.  Our distributors are trained to provide our international customers with the same high standards of service and support that we offer in the UK. Our products are used successfully throughout the world in many different climates and conditions.

With customer satisfaction at the heart of our core values, we invest heavily to ensure that our products are well supported through both direct and indirect channels, no matter where in the world they are used. Working within this proven business model, we have been able to foster a close and personal understanding of our customers' needs and market demands, which helps shape the direction of our business.

Committed to Innovation

HWM has a proven commitment to innovation. We produce some of the world's most advanced, accurate and easy to use water and energy management equipment, and invest heavily in our Research and Development departments to ensure that our customers continue to receive the best available technology and the finest quality design at the lowest possible cost.

Quality Assurance

HWM operates to internationally recognised Quality Management Systems This provides a framework for controlling the impacts of our activities, products and services on the environment.  

We have a documented Quality Management System and are ISO 9001 registered. We also have a documented Environmental Management System and are ISO 14001 registered.    These provide a framework for controlling the impacts of our activities, products and services on the environment, and enable us to continually improve our performance in this important area.

HWM is committed to providing the highest possible standards of service from design to production and customer support. We aim to deliver outstanding customer satisfaction by supplying products that are designed “fit for purpose” - rugged and robust for intensive field use.

Servicing Care

Our commitment to quality does not end with a successful purchase. We provide comprehensive after sales care to ensure that capital investment continues to deliver excellent results for many years to come. 

Our equipment is warranted by HWM to be free from defects in materials and workmanship, and we provide a dedicated Technical Support Helpline, extended warranty options and a commitment to support the repair and maintenance of products for a minimum of ten years from the purchase date of the equipment.


At HWM we recognise that, in addition to producing quality products, the skill of the operator is also vital to achieve the best possible results. Consequently, we place a high priority on training and offer a wide range of courses which can be tailored to customer specific requirements and run all over the world.  

We have a fully equipped purpose built training facility in the UK which includes a leak test site on which delegates can improve their “hands on” skills whist working in supervised, realistic conditions. The result is improved efficiency, greater confidence and cost savings.

Our client list includes utility companies, leakage survey contractors, industrial companies, civil engineering contractors and many others.

We provide training in all aspects of water management including an introduction to leak detection, data logging, pressure control, noise correlation, step testing, permanently installed leak monitoring systems, rapid area leak surveys and flowmeters. We can also tailor courses to your own specific requirements. Please click here for more information 

A Halma Company

HWM-Water Ltd is a Private Limited Company and wholly owned subsidiary of Halma Plc, a UK based business listed on the London Stock Exchange and a constituent of the FTSE 100 Index.   

Halma is a global group of life-saving technology companies with a clear purpose to grow a safer, cleaner, healthier future for everyone, every day.


Our History

Date Event
1979 Reten Acoustics develops a range of industrial sound level meters and analysis equipment for the water industry.
1984 Radcom develops a market leading range of data logging and environmental monitoring equipment.
1985 Reten Acoustics creates one of the first truly portable leak correlators (the RA9851)
1988 Palmer develops the first MicroCorr correlator.
1991 Reten Acoustics moves its operation from Newport, UK to a new production facility adjoining a sixteenth century former farmhouse in Cwmbran, UK. Their product range now includes Elan and Aquatec correlators and the MAST step testing system.
1993 Radio-Tech begins selling low power radio technology solutions to the water industry
1994 Radio-Tech diversifies into other sectors to create innovative electronic point of sale, temperature monitoring and meter reading solutions.
1995 Wessex Electronics Consultants begins to manufacture data logging and pressure control equipment.
1995 Reten Acoustics and Palmer merge to become Palmer Environmental Ltd
1995 Production of Palmer products moves from Great Yarmouth to the Reten factory in Cwmbran, UK
1995 Radio Tech develops the concept of the transparent modem – to satisfy the need of real time data transport without the traditional buffer delay
1999 Palmer launches the ground breaking Permalog leak noise logger, quickly hailed as the most significant advance in leak detection since the correlator.
2000 Palmer acquires Wessex Electronics Consultants
2000 Production of Wessex equipment moves from Romsey to the Palmer factory in Cwmbran, UK
2000 Palmer begins the international marketing of the ControlMate pressure controller.
2000 Palmer acquires Fluid Conservation Systems (based in Ohio, USA)
2001 Palmer introduces the first fully digital leak correlator system, the MicroCorr Digital
2003 Palmer and Radcom become sister companies within the Halma group, and Palmer begins to actively promote Radcom products.
2003 Palmer launches the Xmic ground microphone with minimum level profiling and a graphical display for improved accuracy and ease of use.
2004 Radcom launches the ground breaking ultrasonic level measurement device SonicSens
2005 Radio-Tech pioneers long range integrated radio technology and obtains an exclusive operating frequency at 153.1 MHz
2006 Radio-Tech joins the Halma group
2007 Palmer and Radcom begin to promote themselves jointly as Halma Water Management
2010 Palmer and Radcom officially merge to become HWM-Water Ltd.
2010 Production of Radcom products moves from Romsey to the Palmer factory in Cwmbran, UK
2010 HWM launches Datagate, a secure web hosted data server designed to handle large volumes of SMS/GPRS traffic from Radcom data loggers
2010 HWM launches the world’s first touch screen correlator, the MicroCorr Touch
2011 Radio-Tech becomes part of HWM-Water Ltd.
2011 Production of Radio-Tech products moves from Harlow, UK to the HWM factory in Cwmbran, UK
2013 ASL Holdings becomes part of HWM-Water Ltd

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HWM-Water Ltd
Ty Coch House
Llantarnam Park Way
Cwmbran, NP44 3AW
T: +44 (0) 1633 489 479 F: +44 (0) 1633 877 857 E: [email protected]
The Queen's Award for Enterprise: Innovation 2017
A Halma company
ISO 9001 ISO 14001 ISO 18001 ISO 27001