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.

ESI logo in white

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.


General Purpose Pressure Transmitter

  • Silicon-on-Sapphire sensor technology
  • Pressure ranges to 1,500 bar
  • Unblemished track record of reliability
  • Excellent corrosion resistance
  • High strength titanium pressure port
  • High resistance to overpressure and pressure transients
  • ATEX/IECEx option available
  • DNV GL approved


The GENSPEC GS4200 pressure transmitter is designed to meet the operational requirements of demanding pressure measurement applications where good quality, fast delivery and low cost are of the highest priority.

The unique Silicon-on-Sapphire sensor technology provides outstanding performance and gives excellent stability over a wide temperature range.

Standard accuracy is ±0.25% with an over pressure limit of twice the rated pressure range, this together with easy access for re-calibration affirm the excellent design. All models are supplied with integral 1/4″ BSP or alternative pressure connections.

Optional higher accuracy, outputs and electrical connections are available. The all titanium alloy wetted parts offer unbeatable corrosion resistance.

Standard pressure ranges:

0 – 1 bar Vac; 0 – 0.5 bar; 0 – 1 bar; 0-2.5 bar; 0-6 bar; 0 – 10 bar; 0-16 bar; 0 – 25 bar; 0 – 100 bar; 0 – 250 bar; 0-400 bar; 0 – 600 bar; 0-1,000 bar; 0 – 1,500 bar (other ranges available)

Typical applications include:

  • Continuous monitoring of hydraulic systems
  • Oil, gas, water and other process liquids
  • General industrial environments
  • Medical and clean room applications
  • Aerospace industries

Also ideal for the measurement and control of pressure in refrigeration, pneumatic, compressor, HVAC and engine monitoring systems.

Technical Specifications

Electrical Connections

Pin no. 2 wire 3 wire 4 wire
1 +supply common -supply
2 4-20mA +supply +supply
3 N/C +output +output
to case to case -output


Available options include ATEX and IECEx approved version for explosion protection for flammable gases (zone 0), dusts (zone 20) and mining areas (group I M1) and/or Marine version complying with DNV GL rules for classification of ships, high speed & light craft and DNV GL offshore standards

Get a quote..

For more information or to request a quote contact our sales team