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.


Submersible Depth & Level Pressure Transmitter with Sludge Platform

  • Sludge Platform to raise sensor above sediment level
  • Piezoresistive sensor technology for excellent stability and repeatability
  • Robust stainless steel construction
  • Reliable pressure measurement
  • Pressure ranges available from 0-1 mWG
  • High strength, moulded cable for protection against ingress
  • ATEX/IECEx option available (includes M1 for mining applications)


The PR3420 submersible depth and level transmitter has been designed for accurate level measurement where sediment is present. The integral sludge platform ensures that the sensing element is elevated above the sediment level.

The submersible range of pressure transmitters has been designed for the accurate measurement of the depth and level of liquids in many applications. Standard output signal is 4-20 mA, and electrical connection is via a high strength moulded cable with integral tube for trouble-free venting to the surface atmosphere.

Standard pressure ranges:

0-1 mWG; 0-10 mWG; 0-20 mWG; 0-50 mWG; 0-100 mWG; 0-250 mWG; 0-500 mWG (other options available)

Typical applications include:

  • Depth/ level measurement where sedimentary deposits are present
  • Storage tank level measurement
  • Riverbed/ seabed environments


Technical Specifications

Electrical Connections

Wire mA
Red +supply
Blue 4-20 mA signal
Screen to case


Get a quote..

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