SDT Ultrasound Solutions

What SDT Ultrasound Solutions does

SDT Ultrasound Solutions, legally SDT International SA/NV, is a Belgian-founded (1975), privately held industrial ultrasound specialist headquartered in Forest (Brussels), Belgium, that designs and sells handheld detectors, permanent monitoring systems, acoustic imaging cameras, sensors, and companion software for condition monitoring and predictive maintenance across industrial assets. The core technology stack rests on ultrasound signal capture and analysis, spanning spectrum and time-waveform processing across at least eight application areas: mechanical condition monitoring, bearing lubrication, compressed-air and gas leak detection, electrical fault detection, steam trap testing, hydraulic systems, valve condition monitoring, and tightness testing. The product portfolio is anchored by the flagship SDT340 multifunction detector (with FOCUS mode capable of sampling up to 256 K samples per second for low-speed rotating assets), the SDT270 and SDT200 handheld range, the LUBExpert and LUBExpert ON-GUARD lubrication families (the latter embedding AI-assisted automation), the Vigilant 8-channel online ultrasound and vibration monitoring system (supporting Ethernet, OPC, and Modbus TCP), the CRYSOUND acoustic imaging camera line developed in partnership with Hangzhou CRYSOUND Electronics, and software including UAS3 (Ultranalysis Suite 3), LEAKReporter, SHERLOGReporter, and SDT TankTest Reporter.

The company operates a distributor-led go-to-market, selling through a worldwide network of exclusive trained distributors supported by regional direct sales offices in Belgium, Canada, the United States, India, and Italy, and serves enterprise customers across industrial manufacturing, marine and shipping, defense, energy and utilities, pharmaceuticals, and food and beverage. Revenue is generated through hardware sales (detectors, cameras, sensors), software licenses and companion analytics, training and certification programs (Level 1/2 Ultrasound, ISO CAT I, Power User, Marine Power User, LUBExpert Implementation Master Class), and ongoing support services including a lifetime warranty on hardware. In March 2025, SDT International was acquired by I-care, a Belgian predictive maintenance champion, in what I-care characterized as its largest acquisition; SDT continues to operate under its own brand while leveraging I-care's broader predictive maintenance portfolio, with announced expansion into pharmaceutical quality and sterile-loop monitoring applications during 2026 indicating deliberate vertical extension.

Name

SDT Ultrasound Solutions

Legal name

SDT International SA/NV

Website

https://sdtultrasound.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

101–250 employees

Short description

SDT Ultrasound Solutions is a Belgian-founded industrial ultrasound specialist that designs and sells handheld detectors, permanent monitoring systems, acoustic imaging cameras, and companion software for predictive maintenance and condition monitoring across manufacturing, marine, energy, defense, pharma, and food processing enterprises worldwide.

Ownership category

akta.pro rank

Product category

Industrial Condition Monitoring Equipment

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829)

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), Marine Safety, Alarm & Monitoring Systems (Fire/Gas, IAS, PA/GA) (IMAJAJAG), Electrical Condition Monitoring (Partial Discharge, DGA, IR/Ultrasound) (EUAEAKAC)

Keywords

• Industrial ultrasound inspection
• Condition monitoring equipment
• Predictive maintenance solutions
• Bearing lubrication monitoring
• Compressed air leak detection

Headquarters

HQ city

Forest

HQ country

Belgium

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales: Sale of ultrasound instruments and detectors including SDT340, SDT270, SDT200, CHECKER range devices, Vigilant monitoring systems, CRYSOUND cameras, and sensors/transmitters
2. Software Licenses: Licensing of companion software including UAS3, LEAKReporter, SHERLOGReporter, and SDT TankTest Reporter
3. Training and Certification: Revenue from training programs including Level 1/2 Ultrasound Certification, ISO CAT I Certification, SDT Ultrasound Power User, LUBExpert Implementation Master Class, and Sherlog Hatch Cover Certification
4. Support Services: Hardware and software support services including calibration and repair, backed by lifetime warranty

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

SDT Ultrasound Solutions designs, manufactures, and sells portable and permanently installed ultrasonic detectors, acoustic imaging cameras, sensors, and companion analysis software used for condition monitoring and predictive maintenance of industrial assets. Its products address mechanical fault detection, bearing lubrication management, compressed air and gas leak detection, electrical fault detection, steam trap testing, hydraulic and valve monitoring, and tightness testing across manufacturing, marine, defense, energy, pharmaceutical, and food & beverage operations.

Product overview

SDT Ultrasound Solutions offers a comprehensive portfolio of ultrasound-based predictive maintenance and condition monitoring solutions. The core product line includes handheld ultrasound detectors (SDT340, SDT270, SDT200) for portable inspection across multiple applications including mechanical condition monitoring, leak detection, bearing lubrication, electrical fault detection, steam trap testing, hydraulic systems, and valve monitoring. The flagship SDT340 features integrated ultrasound and vibration analysis with advanced FOCUS mode capability. The LUBExpert family provides specialized acoustic lubrication solutions with AI-assisted guidance (LUBExpert) and smart continuous monitoring (LUBExpert ON-GUARD). The CHECKER Range offers focused, affordable ultrasound detectors (LEAKChecker, LUBEChecker, TRAPChecker, TIGHTChecker, HATCHecker, ULTRAChecker) for specific applications. Permanent monitoring is addressed through Vigilant (8-channel online system combining ultrasound and vibration with Ethernet/OPC/Modbus TCP protocols) and Online4US. The CRYSOUND partnership (CRY8120, CRY2600 Series, CRY2626G, CRY2623M, CRYSOUND POCKET) provides acoustic imaging cameras for visual leak detection. Supporting infrastructure includes Contact and Airborne Ultrasound Sensors, CONMONSense Range, and software solutions (UAS3 for data analysis, LEAKReporter, SHERLOGReporter, SDT TankTest Reporter). The company operates through global distributor networks with regional offices in Belgium, Italy, North America, and India.

Differentiator

Problem solved

Functional benefit

Brands

• LUBExpert: Ultrasound solution for acoustic lubrication and condition monitoring program
• LUBExpert ON-GUARD
• Vigilant
• CRYSOUND
• Checker Range
• UAS3

Products and services

• SDT340 Multi-Function Detector Flagship handheld ultrasound and vibration inspection device with integrated color display for inspecting, detecting, measuring, and analyzing asset condition across multiple applications, with FOCUS Mode for low-speed rotating machines. Used by reliability and maintenance teams in industrial facilities.
• SDT340 Tank Test SDT340 add-on module for underground tank tightness testing using ultrasound technology, paired with the SDT TankTest Reporter software.
• SDT270 Ultrasound Detector Mid-range handheld ultrasound detector for leak detection, mechanical condition monitoring, and bearing lubrication, available in a DU version with spectral analysis capability.
• SDT200 Ultrasound Detector Entry-level handheld ultrasound detector for focused applications including compressed air leak detection, bearing lubrication monitoring, and electrical fault detection.
• LUBExpert Acoustic Lubrication Solution Complete ultrasound solution for acoustic lubrication management that tells operators when to grease and when to stop, featuring AI-assisted guidance, built-in instructor, and grease pump database, with companion UAS3 software for analysis.
• LUBExpert ON-GUARD Smart Lubrication System Smart AI-powered conditional lubrication system that monitors bearing condition in real time, optimizes machine reliability, and provides continuous lubrication status tracking for industrial machines.
• CHECKER Range Focused Ultrasound Detectors Family of focused, affordable handheld ultrasound detectors for specific applications: LEAKChecker (air/gas leaks), LUBEChecker (bearing lubrication), TRAPChecker (steam traps), TIGHTChecker (tightness testing), HATCHecker (marine hatch covers), ULTRAChecker (general inspection).
• Vigilant Permanent Condition Monitoring System 8-channel online condition monitoring system combining ultrasound versatility with vibration analytics, embedded trending software, web browser interface, and standard industrial protocols (Ethernet, OPC, Modbus TCP). Available in Mobility and Permanent configurations.
• Online4US Permanent Ultrasound Monitoring Online monitoring solution for permanent ultrasound condition monitoring of industrial assets, complementing Vigilant for permanent installations.
• CRYSOUND Acoustic Imaging Cameras Family of acoustic imaging cameras (CRY8120 Series, CRY2600 Series, CRY2626G, CRY2623M, CRYSOUND POCKET) for visual detection of compressed air leaks and partial discharges, jointly marketed with Hangzhou CRYSOUND Electronics.
• Ultrasound Sensors and Transmitters Range of contact and airborne ultrasound sensors plus the CONMONSense product line, used to extend ultrasound inspection and permanent monitoring capabilities in industrial applications.
• UAS3 Ultranalysis Suite 3 Software Comprehensive software platform for ultrasound and vibration data analysis, providing trending, FFT, time waveform analysis, bearing fault suspicion display, and reporting for condition monitoring and lubrication programs.
• LEAKReporter Leak Detection Software Specialized reporting software for documenting and analyzing compressed air and gas leak detection survey findings.
• SHERLOGReporter Marine Reporting Software Reporting software for Sherlog technology applications including hatch cover tightness testing and marine ultrasound inspections.
• SDT TankTest Reporter Software Reporting software that produces tank tightness test reports from data collected with the SDT340 Tank Test system.
• Ultrasound Training and Certification Programs Training and certification services including Level 1/2 Ultrasound Certification, ISO CAT I Ultrasound Certification, SDT Ultrasound Power User, SDT-IMCS Marine Power User, LUBExpert Implementation Master Class, and Sherlog Hatch Cover Tightness Testing Certification, provided through SDT's own training centers and distributors.
• Hardware and Software Support Services Post-sale support services including lifetime warranty, hardware calibration and repair, software support, and downloads for SDT products.

Quantifiable outcome

• Leaks can consume 30-40% of compressed air produced in industrial facilities
• +3 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability7 records

Feature10 records

Partnerships

Five partnerships are on record, tiered flagship, core and minor.

• I-careflagshipStrategic or Co-development Partner · 26 March 2025In March 2025, SDT International was acquired by I-care, a Belgian predictive maintenance champion, in what was described as I-care's largest acquisition. This strategic move strengthened I-care's global leadership in predictive maintenance by adding SDT's 50-year ultrasound technology expertise. SDT continues to operate under its own brand while benefiting from I-care's resources and market position.
• Hangzhou CRYSOUND Electronics Co., LtdcoreTechnology or Integration · 25 September 2023SDT International partnered with Hangzhou CRYSOUND Electronics Company to transition to a high-performance leak detection solution. This partnership led to the CRYSOUND product line of acoustic imaging cameras for compressed air leaks and partial discharge detection, with SDT and CRYSOUND jointly launching reporting software for acoustic imaging cameras.
• EASA (Electrostatic Accelerators and Systems Association)minorOthersSDT is associated with EASA as shown in footer partnerships section
• BEMAS (Belgian Maintenance Association)minorOthersSDT is associated with BEMAS, the Belgian Maintenance Association, as shown in footer partnerships section
• Nautical InstituteminorOthersSDT is associated with the Nautical Institute as shown in footer partnerships section, reflecting their marine applications expertise

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Brüel & Kjær (HBK): HBK (Hottinger Brüel & Kjær) is a global leader in sound and vibration measurement, offering portable and online condition monitoring instruments, accelerometers, and analyzers. It is one of the most direct competitors to SDT in ultrasound- and vibration-based predictive maintenance hardware and software.
• PRUFTECHNIK: PRUFTECHNIK specializes in laser shaft alignment, condition monitoring, and vibration analysis for rotating equipment. Its handheld and online systems compete with SDT's portable detectors and Vigilant permanent monitoring in industrial predictive maintenance.
• SDT North America (existing entity) is part of SDT itself - excluded; using a comparable instead. Brüel & Kjær Vibro: Brüel & Kjær Vibro specializes in vibration monitoring and protection systems for rotating machinery, with a strong installed base in power generation, oil & gas, and process industries. Its handheld and online condition monitoring products are highly comparable to SDT's Vigilant and SDT340 offerings.

Broad incumbents

• Emerson (AMS / CSI): Emerson's AMS suite and CSI (Computational Systems Incorporated) product line provide plant-wide asset management and vibration/condition monitoring solutions. As a major industrial automation incumbent, Emerson competes with SDT through broader integrated reliability platforms rather than specialized portable ultrasound.
• SKF (Condition Monitoring): SKF offers the @ptitude Observer suite and Multilog online condition monitoring systems, serving rotating machinery customers globally. While stronger in vibration analytics and bearing sensors, SKF overlaps directly with SDT in industrial reliability use cases and lubricant/condition monitoring software.
• Fluke Corporation: Fluke offers a broad portfolio of portable electrical, thermal, and mechanical test instruments widely used by maintenance technicians. Its acoustic imaging cameras (ii910, ii920) directly overlap with SDT's CRYSOUND leak and partial discharge detection line.
• Honeywell Connected Plant: Honeywell offers the Connected Plant reliability suite (including Movilizer and Versatilis), addressing rotating equipment and asset health. As a broad industrial incumbent, it competes indirectly with SDT for enterprise reliability budgets and digital transformation programs.

Emerging players

• IFM Electronic: IFM Electronic provides industrial sensors and condition monitoring solutions, including vibration and oil-quality sensors with IO-Link connectivity. Its growing online condition monitoring portfolio positions it as a comparable competitor in industrial asset health.
• Analogic (BK Medical): Analogic's BK Medical division manufactures industrial ultrasound-based inspection and measurement systems. While more focused on NDT/security, its ultrasonic instrumentation technology overlaps with SDT's core competence.

Others

• I-care: I-care is SDT's Belgian parent company (acquired March 2025) and a Walloon predictive maintenance champion offering vibration analysis, thermography, and IoT-based reliability services. While now part of the same group, I-care remains the closest ecosystem peer in adjacent reliability technologies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/SDTUltrasound
• Facebookfacebook.com/SDTUltrasoundSolutions
• LinkedInlinkedin.com/company/sdtultrasound

Compliance2 records

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 SDT Ultrasound Solutions