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Advanced NDT Limited offer a wide range of (NDT) Non Destructive Testing Products.


United Kingdom

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Founded in 1993, ADVANCED NDT LTD is an established supplier of Non-Destructive Testing equipment to most leading UK companies.

We pride ourselves on offering customers the ‘OPTIMUM NDT SOLUTION’ to suit their requirements and testing application at a COST-EFFECTIVE PRICE!

We supply leaders in most types of industry, including Power Generation, Petrochemical plants, Automotive, Aerospace, and the MOD, where applications include precision thickness gauging from one side only, corrosion surveys including through paint measurement, flaw detection in forgings and castings, and bond testing of composite structures.

Our range of Ultraviolet Lights has an even broader customer base. The above industries use UV Lights for NDT defect detection using Magnetic Particle Inspection and Dye Penetrant Inspection. However, the performance of these lights has led to new applications for leak detection in automotive engines, sanitation, art restoration, forensic work at crime scenes, and the monitoring of cleaning processes in food manufacturing plants, etc. Whilst predominantly trading in the UK, we have a thriving export business worldwide.

Advanced NDT Ltd works closely with a number of different suppliers from several countries to ensure that we can offer the best
N.D.T. solution for each individual customer.

Products & Services
Ultrasonic Thickness Guages

Ultrasonic Thickness Gauges allowing you to measure from one side only, ideal for many material wall thickness testing applications. From Simple Fixed Velocity Ultrasonic Thickness Testers to High Speed On-line Precision Ultrasonic Thickness Gauging

The Nova TG-110-DL Digital Ultrasonic Thickness Gauge

A simple hand-held, robust, general purpose Ultrasonic Thickness Tester for many applications.

  • Class leading performance for the price
  • Auto Probe Recognition
  • Time encoded B-scan
  • Multi-probe capability (Compatible with 10 probe types)
  • USB, data logging, alarm modes

Dakota MX-1

The Dakota MX-1 - Simple Fixed Velocity Ultrasonic Thickness Gauge

The Dakota MX-1 Ultrasonic Thickness Gauge can be pre-programmed for a specific material type using a simple PC program. The MX-1 is an excellent choice for users that measure the same material type all the time, and do not have the need to re-calibrate to different materials on the fly.

Please Note: The material velocity must be known prior to programming.

The Dakota MX-1 thickness meter will hold a single velocity, making it the perfect choice for applications where only one material is being tested day after day. With the pre-set velocity in this gauge, you simply turn it on and go to work.

The tools' backlit display is easy to read, even in dim light conditions, and the unit operates for up to 200 hours on a single set of AA batteries.

The Dakota MX-1 Ultrasonic thickness gauge comes complete, ready to use, and is protected by Dakota Ultrasonics five year limited warranty.


The CTS-30A / CTS-30B ultrasonic thickness gauge, adopts micro-processor technology and advanced manufacture process design, can do measurement of thickness and acoustic velocity on metal and many materials based on ultrasound measurement principle.

  • Mono LCD (with backlight), 128×64 pixels
  • Measurement range: 0.8mm-300mm/400mm (steel)
  • Measurement accuracy: 0.01mm/0.1mm
  • Various measurement modes available: Minimum measurement value capture, average measurement value, setup limit measurement value, difference measurement value, etc.
  • Input the known thickness and the system may show the velocity of the inspected workpiece in real time.
  • Up to 5000 sets of measurement data (refer to measurement value and acoustic value) and 100 sets of parameter data (refer to measurement value and system setup, etc.) can be saved.
  • Compact size, light weight, low consumption and long operation period.

NOVA 900 Series

The Nova TG 900 Series Precision Ultrasonic Thickness Gauges are now available in both hand-held and bench top versions, from 4 key simple to full featured. Some standard features include High Speed Pulse Rep Rate, 0.0001 Resolution to a minimum of 0.0035 (probe & application dependent)
Auto-set, B-Scan and 50,000 Point Logger as well as storage of 30 custom user Set-ups on 930 Hand-held & 950 Bench top, Delta Mode, High & Low Alarms, Thickness/velocity readout, High Speed LED Numeric Display (readable up to 10 feet away) and LCD Menu display on Bench Top, High Contrast LCD Display on Hand Held, English/Metric units, RS-232C on Hand
Held as well as RS232 and USB digital I/O port on Bench Top, NiMH batteries, scope outputs, AC power module/battery charger.

  • High-Resolution (0.0001in, 0.0025mm)
  • Simple to use
  • Auto probe recognition

The Nova 900 Series represents the latest release and a dramatic
advancement in portable precision ultrasonic thickness gauges. A proprietary monolithic integrated circuit chip and a highly advanced micro-computerized design have permitted the achievement of performance levels considered only conceptual, The outgrowth of this technology has been the development
of three portable and two Bench top models in the Nova 900 Series. These ruggedized, highly stable models have been carefully designed to offer a choice of features to best suit the application level, gauging environment and
user preference.

Nova TG210 & 410

The Nova TG 210 & Nova TG410 - A-Scan Ultrasonic 
Thickness Gauges

The All New Nova A-Trace Series of Ultrasonic Thickness Gauges define a new standard for performance, features and portability in Hand-held Ultrasonic Thickness Gauges.

This ALL NEW Nova A-Trace Series offers Pulse Rep Rates up to 300Hz, With Display Updates of 30Hz, fast enough for all but the most demanding applications. With the introduction of three NEW, Industry Leading Features including Split-view, Split-scan and Auto-track The New Nova Series possibly presents the best features for price in High Performance Ultrasonic Thickness Gauges today. The high speed, fully sunlight readable, backlit
display offers Quarter VGA resolution. The resolution of the display will appear to approach analogue! User interface is via simple plain text menus located at the bottom of the display. Large numeric display zone offers full 7/16" high characters representing Thickness.


CB110 Sidewinder - Sonic Thickness Gauge

  • Cylinder bore wall thickness
  • Data logging, results mapping
  • Scrolling scan view
  • Special probes and fixtures
  • USB, data logging, alarm modes

The Nova CB110 Sidewinder Sonic Tester, Designed Specifically AUTOMOTIVE Inspection requirements. Applications include
Cylinder Bore Inspection, Head Porting, Chassis & Body Members, Roll Cage Thickness Inspection and More...

Measuring the wall thickness of automotive cylinder bores, head ports and other components can be important for quality control in manufacturing or in a boring process where a minimum thickness must be maintained. Cast aluminium or steel engine blocks can be difficult to inspect with complex geometry and limited access. Ultrasonic thickness gauging allows for these
measurements to be made. With dedicated probes that are contoured to the shape of the cylinder or pencil probes to access tight spaces, thickness measurements can be made with confidence.


Coating thickness is an important variable that plays a role in product quality, process control, and cost control. Measurement of film thickness can be done with many different instruments. Understanding the equipment that is available for film thickness measurement and how to use it is useful to every coating operation.

The issues that determine what method is best for a given coating measurement include the type of coating, the substrate material, the thickness range of the coating, the size and shape of the part, and the cost of the equipment. Commonly used measuring techniques for cured organic films include non-destructive dry film methods such as magnetic, eddy current, ultrasonic, or micrometer measurement and also destructive dry film methods such as cross-sectioning or gravimetric (mass) measurement. Methods are also available for powder and liquid coatings to measure the film before it is cured.

Magnetic film gages are used to non-destructively measure the thickness of a non-magnetic coating on ferrous substrates. Most coatings on steel and iron are measured this way. Magnetic gages use one of two principles of operation: magnetic pull-off or magnetic/electromagnetic induction.


Magnetic Pull-off
Magnetic pull-off gauges use a permanent magnet, a calibrated spring, and a graduated scale. The attraction between the magnet and magnetic steel pulls the two together. As the coating thickness separating the two increases, it becomes easier to pull the magnet away. Coating thickness is determined by measuring this pull-off force. Thinner coatings will have stronger magnetic attraction while thicker films will have comparatively less magnetic attraction. Testing with magnetic gages is sensitive to surface roughness, curvature, substrate thickness, and the make up of the metal alloy.
Magnetic pull-off gages are rugged, simple, inexpensive, portable, and usually do not require any calibration adjustment. They are a good, low-cost alternative in situations where quality goals require only a few readings during production.
Pull-off gages are typically pencil-type or rollback dial models. Pencil-type models (PosiPen shown in Fig 1) use a magnet that is mounted to a helical spring that works perpendicularly to the coated surface. Most pencil-type pull-off gages have large magnets and are designed to work in only one or two positions, which partially compensate for gravity. A more accurate version is available, which has a tiny, precise magnet to measure on small, hot, or hard-to-reach surfaces. A triple indicator ensures accurate measurements when the gage is pointed down, up, or horizontally with a tolerance of ±10%.


Fig. 1. Pencil-type magnetic pull-off thickness gauge.

Rollback dial models (PosiTest shown in Fig 2) are the most common form of magnetic pull-off gage. A magnet is attached to one end of a pivoting balanced arm and connected to a calibrated hairspring. By rotating the dial with a finger, the spring increases the force on the magnet and pulls it from the surface. These gauges are easy to use and have a balanced arm that allows them to work in any position, independent of gravity. They are safe in explosive environments and are commonly used by painting
contractors and small powder coating operations. Typical tolerance is ±5%.


Fig. 2. Roll-back dial magnetic pull-off thickness gauge.

Magnetic and Electromagnetic Induction

Magnetic induction instruments use a permanent magnet as the source of the magnetic field. A Hall-effect generator or magneto-resistor is used to sense the magnetic flux density at a pole of the magnet. Electromagnetic induction instruments use an alternating magnetic field. A soft, ferromagnetic rod wound with a coil of fine wire is used to produce a magnetic field. A second coil of wire is used to detect changes in magnetic flux. These electronic instruments measure the change in magnetic flux density at the surface of a magnetic probe as it nears a steel surface. The magnitude of the flux density at the probe surface is directly related to the distance from the steel substrate. By measuring flux density the coating thickness can be determined


Fig. 3. Electronic magnetic induction thickness gauges

Electronic magnetic gages (e.g. PosiTector 6000 F Series, PosiTest DFT Ferrous) come in many shapes and sizes. They commonly use a constant pressure probe to provide consistent readings that are not influenced by different operators. Readings are shown on a liquid crystal display (LCD). They can have options to store measurement results, perform instant analysis of readings, and output results to a printer or computer for further examination. Typical tolerance is ±1%.
The manufacturer's instructions should be carefully followed for most accurate results. Standard test methods are available in ASTM D 1186, D 7091-05, ISO 2178 and ISO 2808.

Ultrasoninc Flaw Detectors


Avenger EZ
Our most popular ultrasonic flaw detector. A small lightweight but very robust hand-held Ultrasonic flaw detection unit with large LCD display.


High Performancec Ultrasonic Flaw Detector and Full Imaging in One Portable Unit.


Ultra-Portable Ultrasonic Flaw Detector & Thickness/Corrosion Guage. Can be won on the wrist giving hand free operation,ideal for rope access work etc.


Quantum Curlin Air
Non Contact Air Coupled Ultrasonic Flaw Detector & Bond Tester.


ISonic 2005
Portable Digital Ultrasoninc Flaw Detector and Recorder.


ISonic 2006
Portable Digital Ultrasoninc Flaw Detector and Recorder with B-Scan, C-Scan,D-Scan,P-Scan,TOFD Inspection and Imaging Capabilies.


ISonic 2007
Portable Dual Channel Digital Ultrasoninc Flaw Detector and Recorder.


ISonic 2008
Portable 8 Channel Digital Ultrasoninc Flaw Detector and Recorder.


ISonic 2009 UPA Scope
Portable High Performance Ultrasonic Phased Array Flaw Detector & Recorder with Conventional UT & TOFD Channels.


ISonic 2010
Portable High Performance Ultrasonic Phased Array Flaw Detector & Recorder with Conventional UT & TOFD Channels.


ISonic 3510
Very Powerful Superior Performance Portable Smart Phased Array Flaw Detector & Recorder with 2 Conventional UT & TOFD Channels.


ISonic 16/32 AUT
Multi Channel Ultrasoninc Flaw Detector for Automatic Ultrasonic Testing.


ISoninc PA AUT
Platform for Automatic Ultrasonic Phased Array, TOFD & Conventional Pulse Echo Inspection.


Socomate USPC Cards
Socomate Ultrasonic PC Cards-USPC 7100LA (formerly USPC 3100). The Benchmark in PC Based single channel pulser-receivers.

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