Remote Non-Intrusive Corrosion Monitoring

Smarter Remote Non-Intrusive Corrosion Monitoring with Installed Ultrasonic Sensors

Measure It. Manage It.

Take advantage of a remarkably cost-effective, modular and robust solution for remote, non-intrusive monitoring of ID corrosion and erosion using the latest solid-state electronics, wireless or wired technologies, cloud based software and innovative ultrasonic transducer designs.

It is surprisingly inexpensive to get started today!

  • Calculating corrosion rates
  • Monitoring known “low spots”
  • Using a non-invasive solution in lieu of or in conjunction w/ invasive methods (coupons, ER probes, etc.)
  • Reducing recurring costs
  • Continuously accessing more & better data on asset condition

SNI is pleased to announce that our smartPIMS® product line is now CE Certified including Hazardous-area location certs for both ATEX Ex II 3 G and IECEx. See attached copies of the certs. This includes the Cellular, Modbus and Modbus DL installed sensor systems.


Interested in Working with Sensor Networks?


smartPIMS components, software and systems are highly configurable, from just a few sensors to thousands of TMLs per network—and available for purchase, rent or as a service. Leveraging the low-cost and ubiquitous aspects of the Internet and wireless networks—including cellular—systems can be more easily and cost-effectively installed and maintained at most industrial facilities.

Installed sensors are ideally suited for remotely monitoring areas of active metal loss due to corrosion/erosion.

Wired Solutions

  • Hard wired – (for areas w/out cellular or wireless infrastructure)
  • No battery on board
  • Collected data manually via tablet
  • ‘Daisy-chain’ up to 32 DSIs on 1000’ RS-485 cable
  • 16 single element or 8 dual element per DSI
  • Temporary OR permanently affixed sensors

Wireless Solutions

  • Ideal for testing a few to a moderate number of points
  • Simple to install
  • Little to no IT support needed
  • Taking readings almost instantly upon setup at defined intervals (1 per day/week/month/etc.)
  • Cloud-based back end for trending & w/ excel data exporting
  • Low cost, highly configurable
  • Battery life: 5-7 years

Continuous Access to More and Better Data

AWS-hosted cloud-based data management system for ultrasonic thickness measurements from installed UT sensors.

  • View, report, analyze
  • Remote collaboration
  • Data can be hosted by Sensor Networks or by user
  • Corrosion rates
  • Set alarms for assets
  • GPS sensor locations
  • A-scan viewing

Why Ultrasound?

  • Safe. Non-invasive to the asset’s pressure boundary.
  • Absolute in its ability to directly measure remaining wall thickness. (Not a proxy for wall loss).
  • Extremely accurate to 0.001” (0.025 mm), with ability to measure down to 0.040” (1 mm) in carbon steel, especially for fixed-location probes.
  • Rugged, reliable and portable. Low recurring maintenance costs.
  • Versatile and cost-effective.

Typical Applications

Power Gen
  • Flow Accelerated Corrosion (FAC)
  • Microbiological corrosion
  • High pressure steam lines
  • High point vent
  • Baseline of new assets


  • Replacement of invasive technologies – ER probes/coupons
  • Process control for chemical inhibitor optimization
  • High Temp Naphthenic acid monitoring


  • Post repair or replacement baseline of new infrastructure
  • Monitoring of known/existing localized corrosion events
  • Used in lieu of pigging/ILI for river/road crossings or 49 CRF 192 & 195


  • Wellhead monitoring for initial start-up & injection/storage
  • High pressure pumping instrumentation health monitoring
  • Sand erosion/wash-out for offshore platforms & FPSOs
Other Applications
  • Flow-Accelerated Corrosion (FAC)
  • Microbiologically-Induced Corrosion (MIC)
  • High-pressure steam lines
  • High point vent
  • Baseline of new assets

Use Cases

Hard-wired system for offshore platforms

Wireless, real-time for refinery, chemical and power plants

Wireless, real-time for buried pipe

Manual system for refinery, chemical and power plants

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