Our Unit Converter

The ESI Unit converter allows you to quickly and easily access a conversion tool to work out your preferred unit of pressure measurement wherever you may be. Whether out on-site or in the office.

Download the ESI-USB© Software

The ESI-USB© software allows you to connect your ESI transducer to your laptop or PC and be up and running monitoring pressure data within ten minutes. The software auto-updates and is compatible with Windows 8, 10 & 11.

Pressure measurement solutions for all major industries

Pressure measurement plays an important role in more applications than we can imagine. Using multiple sensor technologies, materials and fittings, we offer a product range that can measure from a few inches of water up to 5,000 bar (72,500 psi).

Accessories

The ESI product range features high-quality accessories designed to provide the optimal installation solution for any application. This includes plug-in displays, panel meters, and high-temperature adapters, ensuring that users have the right tools for seamless integration with our pressure transmitters and transducers and reliable performance across a variety of settings.

Aerospace

High precision pressure transducers and transmitters are vital in aerospace applications for ensuring the safety, reliability, and performance of aircraft and spacecraft. They provide accurate pressure measurements critical for monitoring systems such as fuel and hydraulics. Precise readings are essential for real-time decision-making, maintaining structural integrity, and preventing system failures, making them indispensable for safe and efficient aerospace operations.

Automotive

Reliable pressure monitoring is crucial for maintaining vehicle safety and preventing system failures, making pressure transducers and transmitters essential in automotive applications. They provide precise pressure measurements for critical systems like engine control, braking, and fuel management. Accurate readings help optimise performance, improve fuel efficiency, and reduce emissions.

pressure transmitters for clean room applications

Clean Rooms

In clean room applications, pressure transducers and transmitters deliver accurate pressure readings that help regulate air filtration and airflow, ensuring that particles and contaminants are kept out. Reliable pressure monitoring is essential for preserving air quality and safeguarding sensitive equipment and processes. These precise measurements also help ensure compliance with strict industry cleanliness standards.

Custom Design

If our standard range wont fit the bill, our team are able to help with a custom designed solution to fit your application.

Defence

The defence industry globally requires high-specification pressure transducers for a range of demanding and critical applications. Whether for aircraft, submarines, or other military platforms, ESI Technology consistently provides precise pressure measurement solutions, including pressure transducers, pressure transmitters and tachometers, all meeting stringent MIL-Spec and NSN standards.

Differential

ESI designs and manufactures high-performance, rugged differential pressure transmitters and transducers suitable for a wide range of applications, including HVAC systems, process control, and environmental monitoring, even in extreme or hazardous environments. Our range also includes very low-pressure differential transmitters, ensuring precise and reliable pressure measurement for applications such as clean rooms, filtration monitoring, and air flow measurement in critical industrial and commercial settings.

Digital

Our digital pressure measurement solutions, featuring SoS sensor technology and pressure ranges up to 5,000 bar, are fully supported by our award-winning ESI-USB software. These solutions also offer compatibility with RS485 and Modbus protocols, providing seamless integration and communication with various control systems. Whether you need high-precision measurements in demanding industrial applications or specialised monitoring in critical environments, our digital pressure transmitter range ensures reliable performance and ease of use.

General Purpose

The GENSPEC range of pressure transducers and pressure transmitters delivers a high-quality, cost-effective solution for a wide range of pressure measurement applications. Our wide-ranging selection features advanced sensor technologies, from robust Thick Film Strain Gauges to highly precise Silicon-on-Sapphire sensors with durable titanium diaphragms. Additionally, select models offer optional ATEX/IECEx and DNV GL certifications, ensuring compliance with stringent safety and industry standards.

Hazardous Area

Our ATEX and IECEx-approved intrinsically safe pressure transmitters provide a 4-20mA output and are designed for reliable performance in hazardous areas. They are available in a variety of pressure measurement types, including Gauge, Absolute, Vacuum, Differential, and Compound, making them suitable for a wide range of applications.

High Accuracy

ESI's high-accuracy pressure transmitters and transducers combine advanced silicon-on-sapphire sensor technology with state-of-the-art digital electronics to deliver exceptional pressure measurement performance for testing, research, and calibration applications. Each unit undergoes a stringent testing and quality control process, ensuring accuracy levels as precise as ≤ ±0.1% of span BFSL.

High Pressure

High pressure measurement and monitoring demand specialised sensor designs to ensure optimal performance and safety. Our high-pressure transmitters, featuring advanced Silicon-on-Sapphire technology, provide precise measurement capabilities at pressures up to 5,000 bar (72,500 psi) across a broad temperature range. Available in standard, digital and hydrogen-compatible versions, these transmitters meet diverse application needs. Additionally, certain models come with optional ATEX/IECEx and DNV GL approvals, further guaranteeing safety and compliance in demanding environments.

High Temperature

High temperature pressure monitoring is essential for applications where media temperatures exceed the limits of standard pressure transmitters, such as in steam systems, food processing, and engine monitoring. Our range of high temperature pressure transmitters and adapters is specifically designed for these demanding environments, delivering accurate and reliable measurements at temperatures up to 250°C. With a variety of models available, we provide solutions tailored to meet the specific needs of different applications, ensuring both safety and performance under extreme conditions. ATEX/IECEx approval is available on selected models.

Hydraulic

ESI provides a comprehensive range of hydraulic pressure transmitters and transducers designed to meet the rigorous demands of hydraulic pressure measurement. Our sensors are engineered to offer exceptional resistance to shock, vibration, and overload, ensuring long-term reliability and durability in challenging environments. Each model delivers accurate measurements with minimal maintenance, making them ideal for applications that require continuous monitoring and control, such as industrial hydraulics, mobile machinery, and high-pressure systems.

Hydrogen

The ESI Hydrogen range features specialised titanium alloy diaphragms and wetted parts, which have successfully passed hydrogen compatibility testing in accordance with ISO 11114-2:2017 standards, meeting the stringent European Regulations EC 79/2009 and EU 406/2010. This versatile range includes standard, compact, high pressure, digital, and high precision versions, ensuring optimal performance across various hydrogen measurement applications. Additionally, select models are available with ATEX/IECEx and DNV GL approvals, providing enhanced safety and compliance for use in hazardous environments.

Hygienic

Hygienic pressure sensors are essential for critical sanitary and sterile applications, commonly found in industries such as pharmaceuticals, petrochemicals, and wastewater management. Our hygienic pressure transmitters, featuring flush diaphragms, are designed for accurate monitoring of hydrostatic pressures, enabling precise measurement of liquid levels, tank volumes, and the pressure of gases generated by various processes. Certain models offer optional ATEX/IECEx approval, ensuring compliance with stringent safety standards in hazardous environments while maintaining the highest levels of hygiene and accuracy.

Low Pressure

ESI’s Low Pressure series of pressure transducers and transmitters has operating ranges starting as low as 0-25 mbar. This range includes low-pressure differential transmitters, along with ATEX/IECEx-approved models for use in hazardous environments and DNV GL-certified options for marine and offshore applications.

Marine

Accurate pressure measurement is crucial in marine applications for ensuring the safety, efficiency, and reliability of various systems including shipping systems such as marine engines, cargo storage tanks, fuel gauging, freshwater storage, wastewater management, heating, cooling and ballast tank control. ESI’s marine range addresses these needs with a comprehensive selection of high-pressure, submersible depth and level, and low-pressure transmitters. These products are designed to meet the demanding conditions of marine environments, with optional ATEX/IECEx approval available for use in hazardous areas.

What are Compact OEM Pressure Transmitters?

OEM

Innovative and reliable, our OEM pressure transducers and transmitters utilise a variety of advanced pressure sensor technologies, allowing ESI to create tailored designs that meet the specific needs of each application, providing a truly customised solution. Our OEM pressure transmitters are available in a wide range of pressure levels, from vacuum to high pressure, and can be customised with different electrical or pressure connections. Additionally, we offer both analogue and digital interface options to suit various requirements.

oil, gas and subsea pressure measurement solutions

Oil, Gas & Subsea

ESI’s products stand out in the oil, gas, subsea and petrochemical industry due to the exceptional accuracy and safety features. From the compact HI5000 downhole pressure transmitter to the PR3915 Dual redundant unit, the advanced Silicon-on-Sapphire technology is leveraged to offer solutions with unparalleled precision. The use of Titanium diaphragms ensures robust durability and resistance to harsh environments, while ATEX/IECEx certification on select models guarantees compliance with stringent safety standards. These features make ESI's pressure transmitters the preferred choice for critical applications where reliability is paramount. Additionally, ESI provides comprehensive document packs, offering detailed technical specifications and certifications to support seamless integration and operational confidence.

Process

ESI offers a comprehensive range of process and industrial pressure transmitters and transducers designed to meet a variety of needs, whether for high-pressure, low-pressure, digital, differential pressure, or high-accuracy applications. These solutions are ideal for critical industrial and process environments such as chemical processing, oil and gas extraction, petrochemical refining, and water treatment facilities. With options for integrated displays and panel meters, these transmitters ensure precise monitoring and control. Additionally, many models come with ATEX, IECEx, and DNV GL approvals, ensuring compliance with the highest safety and quality standards for hazardous and demanding environments.

SOS Technology

Silicon-on-Sapphire (SoS) pressure sensor technology has revolutionised the pressure measurement industry, setting new standards for performance and reliability. By using the elastic properties of the sapphire substrate, and the superb insulating properties of the Sapphire, SOS pressure sensors achieve exceptional accuracy, virtually eliminating hysteresis and ensuring outstanding repeatability. ESI offers a range of pressure transmitters utilising SOS technology which can be tailored for various industries, including aerospace, oil and gas, hydrogen, automotive, and industrial automation. These sensors are designed to withstand extreme temperatures, high-pressure environments, and harsh chemicals, making them ideal for demanding applications. ESI’s use of SoS pressure sensor technology guarantees superior precision, durability, and stability even under the most challenging conditions.

Submersible, Depth & Level

ESI offers comprehensive solutions for all your depth and level measurement needs, with submersible pressure transmitters ranging from 1mWG to 500mWG. ESI sensors come with vented cables that can be supplied in continuous lengths of up to 500 meters, providing flexibility for various applications. Depending on specific requirements, additional options such as sludge platforms, lightning protection, non-vented cables, surge arrestors, and desiccant modules are available. Some models also feature ATEX/IECEx and DNV GL approval for use in hazardous environments. These transmitters are ideal for use in a wide range of scenarios, including groundwater monitoring, reservoir and dam management, wastewater treatment, environmental research, and industrial tank level measurements.

Test & Calibration

ESI pressure transmitters are engineered to meet the most stringent test and measurement specifications, catering to a wide range of applications from general industrial processes to highly specialised environments, including hazardous locations. Our extensive product range includes advanced pressure sensor technology designed for precision and reliability, ensuring accurate pressure measurement across various applications. Whether it’s for monitoring equipment in manufacturing processes, calibrating pressure systems in aerospace, or conducting field tests in oil and gas exploration, ESI pressure transmitters provide the robustness and accuracy needed. With options for ATEX/IECEx and DNV GL approvals, our products are built to perform safely and effectively in even the most challenging conditions.

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