EST is a small company based in County Durham, England, we are specialists in the development of electrochemical
sensors. EST's customer base includes blue chip UK, and international clients. EST has the facility for in-house design
of analytical sensors, through to development and manufacture of complete sensor system packages.

What do we do ?

We research, develop, design and manufacture analytical sensors! We also undertake research for clients, work directed
towards the development of new sensor systems to meet their specific applications and requirements.

Our experience and skill base calls upon more than 30 years of practical and theoretical work spent in the research and
development of sensor systems. Our origins were as a successful university research group.

An EST forte is the application of potentiostatic (amperometric) sensors. These are sensors which offer many desirable
properties see Advantages.

The expertise of EST has been applied to situations ranging from continuous monitoring applications suitable for either the
laboratory or 'in the field' environments. Alternatively, we have experience in the development of 'Measure and Go' sensors,
which provide for instantaneous measurements, complete with data recording facilities, allowing data download at later and
more convenient times.

Our Experience.

Our experience and skill base is wide and our development, test and build facilities were designed to be compact and
flexible, offering a cost effective solution to sensing problems and their solution.

We have extensive experience in the determination of low level ionic species, including metal ions, as well as gases
dissolved in the aqueous phase (e.g., a process stream, river, the sea or other water bodies). Our experience also extends
to airborne gaseous species.

Our service extends from initial laboratory assessment studies, feasibility assessments, prototype sensor system
development, through to the manufacture of a complete sensor system. We are able to carry out a wide range of activities,
including those directed towards: - Sensor cell design and manufacture, High temperature and pressure systems, Fuel cell
development, Construction of electronic equipment including potentiostats, etc.,).

We can also provide project management support and direction particularly of development projects. 

The two figures below illustrate the diverse format in which an electrochemical sensor can be housed to satisfy the particular
requirements of its application. The first figure illustrates a bench mounted sensor unit. The second photograph is of a larger,
and more robust sensor system; this sensor was designed to be towed behind a small boat.

Strict confidentiality is an integral feature of our work and service