India's Most Trusted Ultrasonic Testing Partner
Precision-engineered NDT equipment for Railways, Oil & Gas, Defense, and Critical Infrastructure. Since 1987.
Solutions by Industry
We don't just sell products; we solve inspection challenges across critical sectors.
Oil & Gas
Pipeline corrosion monitoring, weld inspection, and vessel integrity testing.
Explore SolutionsRailways
RDSO-approved rail flaw detection, track inspection, and rolling stock maintenance.
Explore SolutionsAerospace & Defense
Critical component inspection for aircraft and defense systems with full traceability.
Explore SolutionsPower & Energy
Boiler tube inspection, turbine blade testing, and nuclear component verification.
Explore SolutionsManufacturing
Quality control for castings, forgings, welds, and finished components.
Explore SolutionsNDT Labs
Lab-grade precision equipment for third-party inspection and training institutes.
Explore SolutionsProduct Categories
Browse our comprehensive range of ultrasonic testing equipment organized by application.
Flaw Detectors
Arjun Series - Portable ultrasonic flaw detectors for weld, casting, and forging inspection.
View RangeThickness Gauges
Edison Series - Precision ultrasonic thickness measurement for corrosion monitoring.
View RangeRailway Testing
RDSO-approved rail flaw detectors, wheel testers, and track inspection equipment.
View RangeTransducers
Wide range of probes and transducers for all ultrasonic testing applications.
View RangeAccessories
Calibration blocks, couplants, cases, and accessories to complete your NDT setup.
View RangeProduct Selector
Not sure which model you need? Our guided tool recommends the perfect equipment.
Use SelectorExporting to 50+ Countries
Join our global network of distributors and satisfied clients. From the Middle East to Europe, Modsonic delivers precision engineering worldwide.
Industries We Serve
Industry-specific ultrasonic testing solutions engineered for the unique challenges of Railways, Oil & Gas, Aerospace, Defense, Power, and Manufacturing sectors.
Choose Your Industry
Each sector has tailored NDT solutions, application guides, and compliance standards.
Oil & Gas
Pipeline corrosion, weld inspection, vessel integrity for upstream/downstream operations.
Explore Oil & GasRailways
RDSO-approved rail flaw detection, track inspection, rolling stock maintenance.
Explore RailwaysAerospace & Defense
Critical component inspection with full traceability and compliance documentation.
Explore AerospacePower & Energy
Boiler tube inspection, turbine blade testing, nuclear component verification.
Explore PowerManufacturing
Quality control for castings, forgings, welds across automotive and heavy engineering.
Explore ManufacturingNDT Labs
Lab-grade precision equipment for third-party inspection and training institutes.
Explore NDT LabsNot finding your industry? Our solutions are adaptable across multiple sectors.
Use Product Selector ToolReliable NDT Solutions for Oil & Gas Pipeline, Vessel & Weld Inspection
Trusted by ONGC and Reliance · ASME/API compliance · 38 years of Oil & Gas NDT experience
Applications Covered
Comprehensive ultrasonic testing solutions for every stage of oil & gas operations
Pipeline Corrosion
Monitor wall thickness and detect corrosion to prevent leaks.
Weld Defect Detection
Identify sub-surface defects in pipeline and tank welds.
Thickness Measurement
Accurate gauging for corrosion monitoring in pipes & vessels.
Storage Tank Inspection
Comprehensive testing for above-ground and underground tanks.
Recommended Products for Oil & Gas
Arjun 30 - Flaw Detector
Best for pipeline weld inspection and defect detection in field conditions.
- Frequency Range: 0.5–15 MHz
- 6+ hour battery life
- DAC/TVG curve for welds
- ASME B31.3 compatible
Edison UT Gauge
Precision thickness measurement for corrosion monitoring programs.
- Range: 0.75–300mm (steel)
- High-temperature up to 500°C
- Data logging & PC connectivity
- API 570 compliant
Da Vinci Delta - B-Scan
Full weld visualization for comprehensive defect characterization.
- Real-time B-scan imaging
- TOFD capability for sizing
- Portable for field use
- ASNT SNT-TC-1A compatible
Get a Quote for Your Oil & Gas Requirements
Our oil & gas specialists will respond within 24 hours with customized solutions
Complete Range of Ultrasonic Testing Equipment
RDSO-approved, ISO 9001:2015 certified NDT equipment trusted by Indian Railways, ONGC, BHEL, and 1000+ customers across 50+ countries.
Product Categories
Comprehensive NDT solutions for every inspection need
Flaw Detectors
Arjun Series portable UT flaw detectors for weld, casting, forging inspection.
View All Models →Thickness Gauges
Edison Series precision gauges for corrosion monitoring and QA.
View All Models →Railway Testing
RDSO-approved rail flaw detectors, wheel testers, track inspection.
View Railway Products →Transducers & Probes
Angle beam, straight beam, dual element, immersion probes.
Browse Transducers →Accessories & Calibration
Calibration blocks, couplants, cases, cables, and more.
View Accessories →Product Selector Tool
Not sure which model you need? Get a guided recommendation.
Use Selector →Need Help Choosing the Right Equipment?
Our NDT specialists can help you select the perfect equipment for your specific application. Get expert advice in minutes.
Portable Ultrasonic Flaw Detectors
Arjun Series — Engineered for weld, casting, and forging inspection in field & lab environments. RDSO-approved & ISO 9001:2015 certified.
Choose Your Arjun Model
Compare features to find the perfect match for your inspection requirements
Arjun Pro
- Freq: 0.1–20 MHz
- 8" Touchscreen
- TOFD Optional
- Lab-Grade Precision
Arjun Lite
- Freq: 1–10 MHz
- Compact Design
- Entry-Level Cost
- Training Friendly
Application Coverage
Side-by-Side Comparison
| Feature | Arjun 30 | Arjun 45 | Arjun Pro | Arjun Lite |
|---|---|---|---|---|
| Frequency Range | 0.5–15 MHz | 0.5–20 MHz | 0.1–20 MHz | 1–10 MHz |
| Display | 5" Colour | 7" Colour | 8" Touchscreen | 4.3" Mono |
| Battery Life | 6+ Hours | 8+ Hours | 10+ Hours | 4+ Hours |
| TOFD/Phased | No | No | Optional | No |
| Best For | Field / Entry | Lab + Field | Advanced NDT Labs | Training / Budget |
Arjun 30 — Portable Ultrasonic Flaw Detector
RDSO-Approved · ISO 9001:2015 · ASTM E317 Compatible · Deployed in 50+ Countries
Key Benefits for Your Team
Wide Frequency Range
0.5–15 MHz coverage for thin to thick material inspection without changing probes.
6+ Hour Battery Life
Field-deployable reliability with hot-swappable batteries for continuous shifts.
DAC/TVG Curves
Pre-loaded weld inspection curves compliant with ASME B31.3 & API 570 standards.
Data Logging & PC Link
Export inspection reports directly to Excel for compliance documentation & audits.
Application Mapping
Technical Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 0.5 – 15 MHz |
| Display | 5" TFT Colour LCD |
| Gain Range | 0 – 110 dB (0.1 dB steps) |
| Pulse Repetition | 100 – 2000 Hz |
| Battery | Li-Ion, 6+ hours continuous |
| Weight | 1.8 kg (with battery) |
| Operating Temp | -10°C to 50°C |
Standards & Compliance
Download Centre
Technical Brochure
Download (Gated) →Compliance Cert
Download (Gated) →Quick Spec Sheet
Preview (Free) →Request a Quote or Technical Consultation
Fill out the form below and our NDT specialists will respond within 24 hours with pricing, specifications, and application guidance.
Smart Inquiry Form
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Pre-filled message template
Mon–Sat, 9AM–6PM IST
For formal quotation requests
Service & Support
Need calibration or repair? Visit our Service & Calibration page.
Certifications & Standards Compliance
38 years of manufacturing excellence backed by globally recognized quality management systems and international testing standards.
RDSO Approval
Certified vendor for Indian Railways. Meets stringent safety & reliability standards for critical infrastructure deployment.
Download RDSO Certificate →ISO 9001:2015
Quality Management System certified for design, manufacturing, calibration, and servicing of ultrasonic testing equipment.
Download ISO Certificate →GeM Empanelment
Officially empaneled on Government e-Marketplace (GeM) for public sector procurement with verified compliance documentation.
Download GeM Profile →International Standards Compatibility
All Modsonic equipment is designed and tested to comply with globally recognized NDT standards for export markets.
Standards by Product Category
Compliance mapping for international procurement committees
| Product Category | Applicable Standards | Compliance Level |
|---|---|---|
| Flaw Detectors (Arjun Series) | ASTM E317, EN 12668-1, ASNT SNT-TC-1A, RDSO IS:13729 | Fully Compliant |
| Thickness Gauges (Edison Series) | API 570, ASME B31.3, ASTM E797 | Fully Compliant |
| Railway Testing Equipment | RDSO Specifications, IRS Standards, EN 16729 | RDSO Approved |
| Transducers & Probes | ASTM E1065, EN 12668-2, JIS Z 2340 | Compatible |
Pan-India Service & Calibration Network
No long import waits. Local service stations in all major Indian cities with guaranteed turnaround times and certified calibration labs.
Service Level Commitments
We stand behind every piece of equipment we manufacture
Response Time
24 HoursTechnical support acknowledgment
Calibration Turnaround
48 HoursStandard calibration & certification
Warranty Coverage
2 YearsStandard manufacturer warranty
AMC Plans
AnnualPreventive maintenance contracts
Service Center Locations
Dedicated service engineers across India for on-site support & equipment pickup
Request Service or Calibration
Become a Modsonic Distribution Partner
Proven Indian NDT manufacturer. 38 years. 50+ export countries. Seeking exclusive partners in key international markets.
Partner Benefits
Why industrial equipment distributors choose Modsonic
Territory Exclusivity
Protected regional rights for qualified partners meeting volume commitments.
Technical Training
Comprehensive product training & certification for your sales & service team.
Marketing Support
Co-branded materials, digital assets, and trade show participation assistance.
Factory Visit Invitation
Visit our 32,000 sq.ft. Ahmedabad facility to verify manufacturing scale & quality.
Priority Markets
* Other regions considered based on market potential & partner qualifications.
Partner Requirements
- Established industrial equipment distribution network
- Technical sales team with NDT/inspection background preferred
- Minimum annual revenue commitment (varies by territory)
- Commitment to brand standards & customer service SLAs
Apply for Distributorship
Proven Results Across Critical Industries
Real-world applications of Modsonic equipment solving complex inspection challenges for India's largest infrastructure operators.
Railway Track Weld Inspection Programme
Challenge: High false-reject rates in track weld inspections causing unnecessary downtime and maintenance costs.
📈 Measurable Outcomes
- 99.7% defect detection accuracy
- 40% reduction in inspection time
- Zero missed critical defects in 12-month deployment
Offshore Pipeline Corrosion Monitoring
Challenge: Need for reliable thickness gauging in high-temperature, high-pressure offshore pipeline sections.
📈 Measurable Outcomes
- Accurate wall thickness mapping across 500+ km
- 35% faster data collection vs previous equipment
- API 570 compliant reporting for regulatory audits
Heavy Casting Quality Control
Challenge: Detecting sub-surface inclusions in large turbine blade castings before final machining.
📈 Measurable Outcomes
- Reduced scrap rate by 22%
- Improved first-pass yield in machining
- Seamless integration with existing QA workflows
See How Modsonic Solves Your Industry Challenges
Not seeing your sector? Our solutions are adaptable across multiple industries. Contact us to discuss your specific application.
RDSO-Approved Railway NDT Solutions
Track inspection, wheel testing, and rolling stock maintenance trusted by Indian Railways.
Railway Industry Page Template
Copy structure from Oil & Gas page. Replace content with Railway-specific applications, standards (RDSO IS:13729), and case studies.
Request Railway Quote →Critical Component Inspection for Aerospace
Full traceability, ASNT compliance, and high-reliability NDT for defense and aviation.
Aerospace Industry Page Template
Copy structure from Oil & Gas page. Replace content with Aerospace-specific applications, standards (ASNT, NADCAP), and compliance workflows.
Request Aerospace Quote →Boiler, Turbine & Nuclear NDT Solutions
High-temperature thickness gauging, weld inspection, and component integrity for power plants.
Power Industry Page Template
Copy structure from Oil & Gas page. Replace content with Power-specific applications, standards (API, ASME), and maintenance cycles.
Request Power Quote →Quality Control for Castings, Forgings & Welds
Automotive, steel, and heavy engineering NDT solutions for production line efficiency.
Manufacturing Industry Page Template
Copy structure from Oil & Gas page. Replace content with Manufacturing-specific applications, standards, and QA workflows.
Request Manufacturing Quote →Lab-Grade Precision Equipment for Inspection Agencies
Training institutes, third-party inspection, and certification bodies requiring highest accuracy.
NDT Labs Industry Page Template
Copy structure from Oil & Gas page. Replace content with Lab-specific applications, standards (ISO, ASTM), and training requirements.
Request Lab Equipment Quote →Precision Ultrasonic Thickness Gauges
Edison Series — Corrosion monitoring and wall thickness measurement for pipelines, tanks, and vessels.
Thickness Gauges Category Template
Copy structure from Flaw Detectors category. Replace models with Edison UT, Edison Pro, Edison Mini. Update specs and applications accordingly.
Use Selector Tool →RDSO-Approved Railway Testing Equipment
Rail flaw detectors, wheel testers, and track inspection systems deployed across Indian Railways network.
Railway Products Category Template
Copy structure from Flaw Detectors category. Replace models with Rail-specific products. Highlight RDSO approval and Indian Railways deployments.
View Railway Applications →Ultrasonic Transducers & Probes
Angle beam, straight beam, dual element, and immersion probes for all NDT applications.
Transducers Category Template
Copy structure from Flaw Detectors category. Replace models with probe types (0°, 45°, 60°, 70°, Dual, Immersion). Focus on frequency ranges and coupling types.
Request Probe Quote →Calibration Blocks, Couplants & Cases
Complete accessory range to support your NDT operations and maintain equipment standards.
Accessories Category Template
Copy structure from Flaw Detectors category. Replace models with IIW blocks, V1/V2 blocks, couplants, cables, carrying cases, and calibration kits.
View Calibration Services →Arjun 45 — Advanced Portable Flaw Detector
Enhanced field performance with 7" display, advanced DAC, and extended battery life.
Arjun 45 Product Page Template
Copy structure from Arjun 30 page. Update specs, benefits, and comparison table to reflect Arjun 45 features. Keep sticky inquiry sidebar identical.
Request Arjun 45 Quote →Arjun Pro — Laboratory-Grade Flaw Detector
8" touchscreen, TOFD optional, and highest precision for advanced NDT labs.
Arjun Pro Product Page Template
Copy structure from Arjun 30 page. Update specs, benefits, and comparison table to reflect Arjun Pro features. Highlight TOFD capability and lab-grade precision.
Request Arjun Pro Quote →Arjun Lite — Entry-Level Flaw Detector
Compact, budget-friendly design perfect for training institutes and basic inspections.
Arjun Lite Product Page Template
Copy structure from Arjun 30 page. Update specs, benefits, and comparison table to reflect Arjun Lite features. Emphasize training-friendly UI and cost-effectiveness.
Request Arjun Lite Quote →Find the Right NDT Equipment for Your Needs
Answer 3 quick questions and get a personalized recommendation from our expert team.
Guided Product Selection
Not sure which model you need? Let us help you choose.
Takes less than 30 seconds. No email required for initial recommendation.
38 Years of Precision Engineering — Simplifying NDT Since 1987
Founded in Ahmedabad. Built on the principle that precision NDT equipment should be accessible, reliable, and backed by expert Indian service.
Our Facility
32,000 sq. ft. manufacturing campus with in-house R&D, calibration lab, and training centre.
Trusted by India's Most Critical Infrastructure Organisations
From public sector undertakings to global energy giants, Modsonic equipment powers inspection workflows worldwide.
Why Industry Leaders Choose Modsonic
RDSO Approved Vendor
Years of rigorous testing for Indian Railways safety standards.
ISO 9001:2015 Certified
Internationally recognized quality management systems.
50+ Export Countries
Proven reliability across diverse climates and industries.
Technical Documentation & Resources
Access brochures, compliance certificates, user manuals, and application guides.
Download Centre
Gated resources convert to qualified leads. Free previews available for quick reference.
Product Catalogue 2026
Download (Gated) →Arjun Series Spec Sheet
Preview (Free) →ISO 9001 Certificate
Download (Gated) →RDSO Approval Document
Download (Gated) →Edison Series Manual
Preview (Free) →NDT Equipment Selection Guide
Download (Gated) →NDT Insights & Application Guides
Expert articles on ultrasonic testing standards, equipment selection, and industry best practices.
Latest Articles
Published by our engineering team for procurement managers and NDT professionals.
How to Detect Weld Defects in High-Pressure Piping
A step-by-step guide to UT weld inspection following ASME B31.3 standards.
Read More →Understanding EN 1712 Weld Inspection Standards
Compliance requirements for European export markets and procurement checklists.
Read More →RDSO Approval Process for NDT Equipment
What it takes to earn Indian Railways certification and why it matters for buyers.
Read More →Frequently Asked Questions
Common queries about Modsonic equipment, service, calibration, and ordering process.
What is the warranty period for Modsonic equipment?
All Modsonic equipment comes with a standard 2-year manufacturer warranty covering defects in materials and workmanship. Extended warranty and AMC plans are available.
Do you provide calibration certificates?
Yes. Every unit ships with a factory calibration certificate. Annual calibration services are available through our pan-India service network with 48-hour turnaround.
Can I get a demo before purchasing?
Absolutely. We offer on-site demonstrations at your facility or virtual demos via video call. Contact our sales team to schedule.
What standards do your products comply with?
Our equipment is designed and tested to comply with ASTM, EN, ASME, and RDSO standards. Full compliance documentation is available for download on each product page.
Still have questions? Our team is here to help.
Contact Support →