Permasense

What Permasense does

Permasense Ltd is a UK-based (Horsham) research and development company founded in 2008 that developed continuous corrosion and erosion monitoring technology for industrial process facilities. Originally an independent firm focused on the oil and gas sector, Permasense was acquired by Emerson Electric Co. and now operates as a product brand within Emerson's Measurement Instrumentation division, with its technology sold under the Rosemount brand.

The company's core offering centers on wireless ultrasonic thickness (UT) monitoring. Permanently installed transmitters (Rosemount Wireless ET310C, ET310, and WT210) use patented couplant-free ultrasonic technology — employing dry-coupled waveguides and electromagnetic acoustic transducers — to measure wall thickness without process interruption, transmitting data wirelessly for real-time visibility into metal loss. The portfolio has been extended with the Rosemount 4390 Series of inline fluid corrosivity transmitters, which use probes in direct contact with process fluid for highly sensitive corrosion and erosion measurement, and the Rosemount SAM42 Acoustic Particle Monitor, which listens to solids in the process stream to detect erosion risk in real time. Sensor data is consolidated in Plantweb Insight Corrosion and Erosion Applications, Emerson's analytics platform that delivers predictive intelligence, anomaly detection, and dashboards for asset integrity management, alongside a Connected Services offering for ongoing expert monitoring.

Permasense sells through Emerson's global enterprise field-sales motion with quote-based, multi-year contracts and expert-led configuration. Revenue streams include hardware sales (wireless transmitters and probes), recurring software/analytics (Plantweb Insight), and managed services (Connected Services). End markets are industrial verticals with high asset-integrity stakes — Oil & Gas (upstream and downstream), Refining, Chemical, Mining/Minerals & Metals, Power (including Data Centers), Marine, and Pulp & Paper — where unplanned downtime, safety incidents, and shortened asset life from corrosion and erosion represent material operational and financial risk.

Name

Permasense

Legal name

Permasense

Website

https://permasense.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Permasense, a UK-founded firm now operating as a product brand within Emerson Electric Co., develops wireless ultrasonic thickness sensors, inline corrosivity probes, and acoustic particle monitors for continuous corrosion and erosion monitoring in oil & gas, refining, chemical, mining, power, and marine process facilities.

Ownership category

akta.pro rank

Product category

Industrial Corrosion & Erosion Monitoring

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Measuring & Controlling Devices, Nec (3829), Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

NDT/NDE Inspection Equipment (Ultrasonic, eddy current, radiography, thermography) (IMAGAFAI)

akta.pro secondary industries

Condition Monitoring Sensors & IoT (online/offline monitoring, edge devices) (EUADAJAD), Ruggedized/Harsh-Environment Electronics Manufacturing (IP-rated, shock/vibration, wide-temp) (IMAGAGAF)

Keywords

• Corrosion monitoring
• Erosion monitoring
• Ultrasonic thickness monitoring
• Wireless transmitters
• Asset integrity

Headquarters

HQ city

Horsham

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Supply Chain, Infrastructure

Revenue model

1. Hardware Products: Sale of wireless corrosion and erosion monitoring transmitters including Rosemount Wireless ET310C, ET310, WT210, and 4390 Series transmitters. These are permanently installed industrial monitoring devices.
2. Software and Analytics: Plantweb Insight Corrosion and Erosion Applications providing real-time analysis, predictive intelligence, and monitoring dashboards for data visualization.
3. Connected Services: Connected Services for Corrosion and Erosion Monitoring providing ongoing support, monitoring, and expert analysis.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Permasense develops and supplies wireless ultrasonic thickness monitoring transmitters and acoustic particle monitors for continuous, non-intrusive corrosion and erosion monitoring in industrial process facilities. Its portfolio includes Rosemount Wireless ET310C, ET310, WT210, and 4390 Series transmitters, the SAM42 Acoustic Particle Monitor, and Plantweb Insight analytics software. The offerings are sold under Emerson's Rosemount brand and target oil & gas, refining, chemical, mining, power, and marine operators.

Product overview

Permasense, now part of Emerson's Measurement Instrumentation division, offers a comprehensive corrosion and erosion monitoring portfolio centered on ultrasonic thickness monitoring technology. The product line includes wireless wall thickness transmitters (ET310C, ET310, WT210) for non-intrusive monitoring, inline fluid corrosivity transmitters (Rosemount 4390 Series), and the SAM42 Acoustic Particle Monitor for erosion detection. These hardware products integrate with Plantweb Insight software to deliver real-time analytics, predictive intelligence, and asset health visibility. The system enables continuous monitoring of metal degradation, replacing traditional reactive maintenance with proactive asset integrity management.

Differentiator

Problem solved

Functional benefit

Brands

• Rosemount: Rosemount brand includes wireless corrosion and erosion transmitters, wireless ET310C, ET310, WT210 transmitters, and 4390 Series Corrosion and Erosion Wireless Transmitters for monitoring solutions.

Products and services

• Rosemount Wireless ET310C Corrosion and Erosion Transmitter A non-intrusive, permanently installed wireless transmitter that continuously monitors the wall thickness of assets to track corrosion and erosion, providing reliable data for informed operational decisions.
• Rosemount Wireless ET310 Corrosion and Erosion Transmitter A non-intrusive wireless transmitter that continuously monitors the health of assets and the impact of corrosion and erosion through wall thickness measurements.
• Rosemount Wireless WT210 Corrosion and Erosion Transmitter A wireless corrosion and erosion monitoring transmitter that provides wall thickness monitoring for asset integrity management.
• Rosemount 4390 Series Corrosion and Erosion Wireless Transmitters Inline fluid corrosivity monitoring transmitters that provide accurate and highly sensitive corrosion and erosion data via probes that directly contact the process fluid, helping control corrosion risk and optimize operations.
• Rosemount SAM42 Acoustic Particle Monitor A non-intrusive, permanently installed device that listens to solids in the process stream and measures intensity in real-time to detect erosion risk before damage occurs, helping extend asset life.
• Plantweb Insight Corrosion and Erosion Applications Real-time analysis and insights software providing a network of predictive intelligence to help prevent corrosion or erosion issues before they occur and enable predictive maintenance.

Quantifiable outcome

• Improved safety through early detection of corrosion and erosion degradation
• +3 more outcomes

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature4 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Emerging players

• MISTRAS Group: Provider of NDT, inspection, and asset integrity services and products including ultrasonic thickness monitoring. Adjacent competitor to Permasense's installed ultrasonic sensors, particularly via service-led inspection contracts.

Broad incumbents

• ABB Measurement & Analytics: ABB's instrumentation and analytics business competes in process analytical and asset health monitoring across similar oil & gas, chemical, and power verticals.
• Endress+Hauser: Swiss industrial measurement instrumentation provider covering flow, level, pressure, temperature, and analytical categories with strong presence in chemical, food, and water — competes for plant-level instrumentation budgets alongside corrosion monitoring.
• Honeywell Process Solutions: Major industrial automation vendor offering asset monitoring, corrosion management, and digital twin solutions across refining, petrochemical, and oil & gas — overlapping customer base and competing on integrated platform plays.
• Emerson Rosemount (broader Measurement Instrumentation): Same parent portfolio offering pressure, temperature, level, flow, and analytical instrumentation. While Permasense sits inside this group externally, the broader Rosemount/Emerson line is the relevant broad incumbent benchmark for competitive positioning and channel leverage.
• Siemens Process Automation: Process automation and instrumentation arm of Siemens serving refining, chemical, and power with SIMATIC and SITRANS portfolios that overlap with Emerson/Permasense plant-level offerings.
• Yokogawa Electric: Japanese industrial automation and measurement specialist serving oil & gas, refining, chemical, and power. Sells field instruments, process control, and asset management software that compete with the broader Emerson/Permasense stack.

Direct peers

• ClampOn: Norwegian specialist in ultrasonic acoustic sand and particle monitors for topside and subsea applications. Closest direct peer to Permasense's SAM42 acoustic particle monitor and ultrasonic erosion detection product line.
• Rohrback Cosasco Systems (Cosasco): Long-established US-based manufacturer of corrosion probes, coupons, and online corrosion/erosion monitoring systems. Directly comparable to Permasense's 4390 inline fluid corrosivity transmitters and wireless wall-thickness portfolio.
• Metal Samples (Alabama Specialty Products): Division specializing in corrosion monitoring probes, coupons, and chemical injection equipment for oil & gas and process industries. Overlaps with Permasense's corrosion and erosion sensor portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/permasense_ltd
• YouTubeyoutube.com/user/emerson
• Facebookfacebook.com/EmersonCorporate
• LinkedInlinkedin.com/company/permasense-ltd

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Permasense