Tough Challenges. Critical Solutions.

In 1985, United Western Technologies Corp, (DBA UniWest) was founded. We began with four employees and one contract. Among our core beliefs is that all clients are treated fairly, with a relationship akin to a doctor and their patient. We want them to know that we believe in confidentiality and in our ability to understand their problems and to solve them. This philosophy of trust and honesty, combined with engineering competence, ensures loyal customers. At UniWest every employee is dedicated to providing customer satisfaction, a goal that our customers expect and deserve. UniWest is proud to be 100% employee owned, and as a result, our employees are committed to teamwork. UniWest is a Leader in the sensing technology industry. We design, manufacture and service products with pride in quality workmanship. Our products are in the field, testing engine components, in the laboratory, analyzing new & unusual materials and on the production line, using multi-coil arrays. UniWest will tailor a complete turnkey sensor & delivery system for your inspection needs. Our Goal is to provide a practical and robust solution to your application.

Why Choose UniWest?
UniWest delivers more than products. Our team develops integrated methods to detect and diagnose material problems non-destructively. We utilize time-tested as well as innovative engineering processes to derive effective solutions to critical challenges,
while making efficient use of resources.

We believe in the timeless values of competence, integrity and responsiveness to customer needs.

  • Contact Person Marty J. KLatt
  • Address 122 South 4th Ave
    Pasco, WA 99301
Probe Kits

Airframe Surface Inspection Kit

Airframe surface inspection kit for eddy current inspection of challenging airframe geometries, such as edges, flats, cutouts, and tight radii.

Raised Head

Airframe inspection kit for eddy current inspection of raised-head fasteners commonly found on airframe structures. Kit includes specialty reference standards.


​UniWest builds and develops all industry-standard types of surface probes, pencil probes, ring probes, and manual bolt-hole probes for common airframe and industrial inspections. We can also specially design probes for your unique application.

Custom Kits

UniWest can build customized eddy current inspection kits to include all you need for field inspections. Kits may include: eddy current probes, scanner, case and cables.

Speciality Kits

Standard Encircling Kit

UniWest offers many of standard encircling coils for tube and wire applications in addition to special application probes for your unique inspections.

Surface Airframe

Specialty eddy current inspection kit for inspection of airframe parts such as radii, fastener holes, and flat and edge geometries.

ECS-3 Kit

The ECS-3 high-speed, hand-held rotating eddy current scanner and scanner system was designed for ease of use and interpretation. Set-up is quick and easy. A full C-scan image displays the scanned surface in color or gray-scale, mirroring the surface and subsurface, to provide ease of interpretation and reduce the chance of interpretive error. The scanner system consists of the ECS-3 scanner, US-454A EddyView laptop, and ECS-3 imaging software. The system provides real-time imaging of diverse conductive metals clearly showing surface and subsurface material conditions and discontinuities.

Probe Catalog


Angled Pencil Probes are general purpose probes used for surface inspection in limited access areas.

  • Variety of Working Lengths
  • Different Tip Angles and Drops
  • Bridge or Reflection configuration
  • Absolute or Differential
  • Shielded or Unshielded
  • Several Frequency Ranges


Sliding Probes are used on airframes structures for finding surface or subsurface flaws located near or between fasteners. Sliding probes are specifically designed to inspect rows of fasteners. They operate in reflection mode and are used to find surface and near-surface flaws.
Various Frequency Ranges Available

Surfacing Following

Surface Following Probes are fitted with a unique patented swivel head which allows the coil to follow curvilinear surfaces without the need to keep the probe perpendicular to the inspection zone.

(URB) Universal Rotating Bolt Hole

Bolt Hole Scanner Probes are most often used in hole or bore inspections. These URB probes can be used with high speed scanners, increasing inspection speed and accuracy in finding flaws.
Designed with Differential Reflection Coil
Standard work length is 1.750" (44.45mm)

Ring Probe

Ring probes are made to fit various fastener head diameters and are used for subsurface crack detection with the fastener in place. Ring Probes are also used for finding sub-surface corrosion in structures.

  • Low Frequency Capability
  • Reflection or Absolute Coil Configurations
  • Ring Probe

Pencil Probes

Pencil Probes are used for general surface NDT inspections. An optional collar may be used to stabilize the probe on flat surfaces.

  • Bridge or Reflection configurations
  • Absolute or Differential modes
  • Shielded or Unshielded
  • Several Frequency Ranges

U-40 Encircling Coil

Encircling Coils are typically used for on-line inspection of tubes, bars and wires for manufacturing flaws such as inclusions, porosity, cracks, laps, seams, etc.

Surface Probe

UniWest manufactures a variety of probes for surface and subsurface inspections. Surface probes are built with a flat bottom to offer better stability on the structure being inspected.

  • Absolute, Bridge, or Reflection configurations
  • All Surface Probes are Shielded
  • Multiple Frequency Ranges


Jet Engine Semi-Automated Eddy Current Scanning System
The ETC-2000 jet engine EC scanning system, developed under the auspices of the ETC (Engine Titanium Consortium), is a semi-automated system for scanning fracture-critical jet engine components. The scanner was developed to work with most jet engine OEM components requiring highly critical eddy current testing.

ES-1000 Jet Engine Tabletop ECT Scanner

 In response to customer interest in a lower-cost, limited-feature, eddy current testing system for jet engine components weighing up to 30 pounds, NDT innovator, UniWest, has developed a new tabletop, 3-axis, semi-automatic ECT inspection system. The ES-1000 provides precision eddy current testing for rotationally symmetric parts, such as engine disk bores and webs.

The new unit enables substantial capacity utilization efficiencies for global OEMs at the same time it places semi-automated eddy current testing within the financial reach of smaller regional jet engine maintenance facilities.

For large organizations, including aircraft manufacturers and global aircraft maintenance facilities, many of whom already own one or more full-scale ETC-2000 systems, the ES-1000’s modular design allows sharing of existing components, such as probes, part-mounts, and signal processing instruments as well as computers and monitors, between eddy current testing systems. All of UniWest’s eddy current instrument series, such as the US-454, US-454A and the new EddyView Pro and Premium can be used with the ES-1000. In addition to equipment acquisition cost-efficiencies, component sharing allows larger organizations to allocate their eddy current testing workload across all UniWest ECT resources.

For regional facilities servicing smaller jet aircraft, the ES-1000’s acquisition cost makes investing in a semi-automated eddy current system a viable business proposition when compared to a full-scale system.

The modular ES-1000 system comprises four operationally independent components: 1) turntable and gantry module; 2) eddy current generation and processing instrument; 3) eddy current probe, and 4) computer and display, running Windows 7 or higher.

The systems’ essential component is the 24-inch-square turntable which is fully compatible with all UniWest mounting mechanisms. The turntable and extendable gantry accepts parts up to 30 inches in diameter and 12 inches tall. For inspection of larger parts, custom gantry and probe-arm configurations can be readily fabricated.

The turntable module’s 32-inch-wide gantry rail and attached probe arm are fitted with servo-driven lead screws for horizontal and vertical placement of the probe. Any of UniWest’s full complement of more than 3,000 eddy current probes may be attached to the probe arm by means of appropriate holders.
System setup is a simple matter of placing a part on the turntable, positioning the probe-head at the scan initiation point and pressing the software start button. The system then automatically scans the part using a pre-programmable routine.

In addition to the obvious cost efficiencies associated with component interchangeability, the ES-1000 is subject to less downtime because components are easily swappable from one system to another. For instance, while an instrument is out of service for factory calibration, or when a hard drive or video monitor fails, the problem can be quickly remedied by simply replacing the out-of-service component, reinstalling the ES-1000 software, if necessary, and rebooting the system.

Although the ES-1000 system is not designed for multi-dimensional motion at this time, minor contour following is afforded by spring compliance of the probes. UniWest anticipates the future development of software upgrades to accommodate inspection of curvilinear parts such as turbine fins.

The ES-1000 provides essentially the same precision as UniWest's full-featured ETC-2000 jet engine scanning system, with a reduced number of more complex performance features, for about a quarter the cost of the larger system. This new, value-optimized system is ideal for both original equipment manufacturers for whom work allocation and capacity utilization are important, as well as for regional maintenance facilities for whom, until now, larger ECT systems have been prohibitively expensive.


Uni-Versal Robotic Eddy Current Test Machine
The Uni-Versal™ Test Machine is revolutionizing the way products are quality tested in the automotive industry. It is the first flexible test platform that offers totally robotic testing of metal bearings and spindles utilizing eddy current testing (ECT) for cracks. It is also the first machine of its kind to offer true automatic self-calibration.

The Uni-Versal™ Test Machine was designed to meet the current need for automated, reliable product quality verification of metal bearings and spindles safety-critical automotive parts. The Uni-Versal™ speeds up the verification process with no interruption of flow. It also eliminates the possibility of operator error or misreading of results. True auto-calibration ensures consistently accurate readings.

Central to this machine is the UniWest US-525M multi-channel eddy current testing instrument.
The Uni-Versal™ and has a compact footprint (37" deep × 44" long) and can be installed inline or along side an existing conveyor belt. It can be programmed to handle and test avariety of spindles and bearings.
The operator simply selects the part number, a three-dimensional image of the part appears on the screen, and the Uni-Versal™ automatically resets the gain for that part. One robotic arm then lifts the part from the conveyer and brings it into the test machine where it is placed on a rotating chuck. Another robotic arm manipulates the eddy current probe, while ensuring that it remains precisely the same distance from the part's surface to ensure accuracy. Separate probes robotically test inside and outside diameters for flaws.

The Uni-Versal™ Test Machine segregates rejected parts from verified parts. An optional impact marker can then mark the accepted parts. Verified arts are then returned to the line, so there is no disruption to product flow. Rejected parts are placed onto another conveyor. Parts are divided into zones to identify flaw locations.

The Uni-Versal™ will never be obsolete, as it can be continually reprogrammed to accommodate new part designs. For more information, contact UniWest today.


Tie-Bolt Inspection System
The US-1779 Tie Bolt System enables complete inspection of aircraft wheel bolt threads as well as inspection under the bolt head for highly accurate eddy current testing. Photo shows the US-1779 Tie Bolt Inspection System being used with the US-454A.
• Twin-roller flatbed for quick inspection cycles
• Specialty probe included; no other probe required
• Smaller footprint (2' × 3') than other NDT equipment in wheel and brake shops
• No chemicals to dispose of
• Operator-independent go/no-go alarm set
• Detects smaller flaws than other NDT methods
• Bolts need not be free of grease


ScanDex™ Portable EC Scanner Positioning Device
The US-1518 ScanDex™ positions the JF-15 high-speed bolt hole scanner so that the probe is precisely positioned parallel to the bolt hole. This ensures that the coil is coupled to the surface of the bolt hole, maximizing the signal response to produce the best defect response possible.

4-Axis Scanner


Let UniWest solve quality verification problems in your production environment. We build and customize eddy current instrumentation for use in bar, tube, wire, and component testing. We can provide a turnkey approach to your online systems integration needs, providing the entire signal path from the probe to instrumentation to computer or controller. UniWest solutions are designed to fit seamlessly into in your production process and meet your quality verification needs.


Engineered by the UniWest Eddy Current solutions team and proudly manufactured in the United States.

The EVi works directly with the EddyView Family of probes and accessories. UniWest’s unmatched selection of standard and advanced display features set a new standard for flexibility of applications, ease of use, interpretation of data and overall operator accuracy.

The key to the EVi’s ground-breaking performance is the display of a visual image of the surface area under inspection alongside the customary and selectable eddy current signal displays (impedance plane, A-scan or strip charts).

The EVi provides a high precision, easily readable display of surface conditions enabling improved interpretation of data while giving more accurate discernment of cracks, pits, gouges and fretting.
By merging innovative surface imaging with UniWest’s renowned, best-in-class signal to noise the EVi system sets a the standard of precision for eddy current testing in a portable and easy to use package.

EVi Accessories

The ECS-5 is UniWest’s EVi-compatible, hand-held bolt hole scanner. Ideal for rotary and linear scan-motion indexing. The ECS-5 supports both absolute and differential coil types in both reflection and bridge configurations. This scanner provides 3 mil to 30 mil scan resolution in 1 mil increments. Variable rotation from 500 to 3000 RPM is adjustable in 10 RPM steps at constant torque throughout any speed range.

Ergonomically designed for comfortable handling and rapid inspection of small and hard to reach areas. The portable ECS-3S scanner provides a constant, high-speed scan of the surface. Capable of covering areas as small as ¾ inch, the ECS-3S’s contour-following sensor assembly allows inspection of variable surface gradients. The ECS-3S improves flaw discernment for previously inaccessible remote and obscure surface areas.

EddyView Family

Prime Features Include

  • Single Frequency Capability
  • X-Y Gain Spread
  • Impedance plane, strip chart displays at the same time
  • Removable SD card for program and test result storage
  • Ethernet connectivity

Pro Features Include

  • Dual frequency with mixing
  • Split-screen for both impedance plane and O-scope/sweep modes
  • Digital conductivity measurement
  • Non-conductive liftoff digital measurement
  • Rotating scanner support for high speed bolt hole scanning
  • USB flash drive support

Premium Features Include

  • Quad frequency capability
  • Waterfall display for bolt hole imaging
  • Encoder support
  • Auto name capability
  • Both HP and Epson printer support
  • Special software packages for multiplexing capability (optional)
  • Pro Features Include


The US-525M multi-channel eddy current testing instrument is a rugged industrial rack-mounted instrument offering multi-channel testing, integral digital strip chart, as well as Ethernet control and data transfer to meet your in process testing requirements. This instrument offers up to eight channels, with a frequency range of 20 Hz to 10 Mz, a high signal-to-noise ratio, a bright 12-inch diagonal color LCD flat-panel screen, and data storage of 32 Gig. It offers input/output (I/O) capability, USB and Ethernet connectivity, as well as three discrete alarm gates with independent outputs per channel. for your on-line bar, tube, wire and specialty component testing needs.

  • Multi-Channel: up to 8 channels
  • Bright 12" diagonal color LCD, flat panel
  • Frequency Range: 20 Hz to 10 Mz
  • Data Storage: 32 Gig internal Card
  • Four encoder inputs provide position stamped data to client computer.
  • Quadrature 5 volt optically isolated inputs.
  • Weight: 42 lbs
  • Dimensions: 19" wide x 8.7" high x 18.5" deep


The US-450 is a unique desk op eddy current instrument well suited for use in the lab, which can connect your desktop PC for data collection and analysis.

The US-450 offers high-speed flaw detection when used with an automated inspection system, digital thickness measurement of conductive and non-conductive coatings, digital thickness measurement of nonferrous metals, and digital readout of conductivity, phase and amplitude.

This instrument adapts to fit most eddy current probes and features a integral digital strip chart recorder and a frequency range of 100 Hz to 10 MHz.

  • Frequency Range: 100 Hz to 10 MHz
  • High speed flaw detection when used with automatedinspection system
  • Digital strip chart recorder
  • Adapts to fit most eddy current probes
  • Digital thickness measurement of conductive & non-conductive coatings
  • Digital thickness measurement of non-ferrous metals
  • Digital readout of conductivity, phase & amplitude


The US-454A is a portable, hand-held, battery-operated multi-frequency eddy current instrument that can be connected to a laptop, PC and motion controllers for use in semi- or fully automatic data collection applications. Two encoder inputs enable position stamping of data. Pulse-on position input is ideal for motion control applications. Ethernet and USB capabilities allow instrument control along with time- and position-stamped data transfer to the client computer. Built from the rugged US-454 architecture, the US-454A offers single- and multi-frequency inspection, frequency mixing capabilities, enhanced signal-to-noise ratio, USB, Ethernet and data storage capability, and unprecedented digital strip chart data collection.


US-454A in fully automated roller bearing inspection system. The roller bearing system allows for continuous automated inspection of various sizes of roller bearings. UniWest can also build specialty visions systems to work with eddy current probes inspection of hard-to-access areas.

Built from the rugged US-454 architecture, the US-454A offers single- and multi-frequency inspection, frequency mixing capabilities, enhanced signal-to-noise ratio, USB, Ethernet and data storage capability, and unprecedented digital strip chart data collection.

  • Multi-frequency – up to four frequencies
  • Frequency Range: 20 Hz to 15 MHz
  • Bright, 6.5" diagonal color LCD, flat panel
  • Digital strip chart recording
  • Two encoder inputs for position stamping of data
  • Pulse on position input for motion control application
  • Ethernet for instrument control along with time/position stamped data transfer to client computer
  • 16 bit resolution digital data
  • Can store up to 250 individual four megabyte date files on a 1 Gig Card
  • High Speed Scanner connection
  • Video LCD display with external RGB output
  • Lithium ion rechargeable battery pack, 10.8 Volts, 5400 mAh
  • Programmable push button function keys
  • Weight: 5 lbs. with battery, 4 lbs without battery
  • Dimensions: 11.5" long X 7.5" high X 3" deep

The US-500 E-Lab is a fully automated, computer based eddy current system for high-speed, in-line inspection of critical components containing small discontinuities. Software is user friendly Windows based. Simulated strip chart showing X&Y data. This instrument works best with custom designed probes selected for compatibility to receive the best sensitivity and signal to noise ratio for the application.

  • Frequency Range: 100 Hz to 10 MHz
  • High speed flaw detection when used with automated inspection system
  • Digital strip chart recorder
  • Adapts to fit most eddy current probes
  • Digital thickness measurement of conductive & non-conductive coatings
  • Digital thickness measurement of non-ferrous metals

The US-500 E-Lab Industrial is a robust rack-mounted eddy current instrument and industrial computer housed in a rugged dust-proof enclosure with industrial fan and alarm light for 24/7 operation.

  • Materials Sorting
  • Crack Detection
  • Hardness Testing
  • Coating Measurement
  • Plating Thickness Measurement
  • Conductivity Measurement

Quick Change

The Quick Change Transducer (QCT) series of transducers that makes changing wedge angle and transducer frequency rapid and easy, saving both time and money. The QCT connects straight into the wedges allowing for many combinations all within one kit. All QC Transducers are fitted with top mounted microdot connectors allowing for seamless transition from one transducer to the next. The stainless steel transducer housing will resist even the harshest working conditions. The emphasis of the QCT is general purpose with a balance of power and resolution, a High resolution version is available upon request.
The Quick Change Wedge (QCW) is simple to setup and operate, utilizing incorporated noise dampening material on the wedge. Offered in steel, aluminum and titanium refracted angle. Custom contours, radii and wear pins available upon request.
The QCT and QCW series are extremely versatile and can be used in many different applications and in a wide variety of industries and environments.

Angle Beam Potted

Angle beam transducers are single element shear wave transducers in a non-marring plastic housing. The high sensitivity and good resolution of these transducers allow them to be widely used and make them a popular choice for many NDT applications. They are found in diverse applications in industries employing NDT such as weld inspection and flaw detection on air frames and other such applications. Custom designs available upon request.

EE Pen

Replacable delay line pencil type transducers feature a single element and rugged construction for tough working conditions providing years of service. The compact design allows for the ability to access hard to reach areas or curved surfaces such as turbine blades. With high sensitivity and excellent resolution, these transducers have wide variety of applications, making them a popular choice for various inspections. Replaceable tips are available in .070" and .125" tip diameter.

Contact Transducer

Single element longitudinal wave transducers are used for flaw detection, material thickness measurements and feature mapping. The Standard Contact configurations use a rugged stainless steel housing coupled with an aluminum oxide wear face. The Replaceable Delay Line transducers have a 0.200 inch long replaceable plastic tip.



The ECS-5 is UniWest’s EVi-compatible, hand-held bolt hole scanner. Ideal for rotary and linear scan-motion indexing, the ECS-5 supports both absolute and differential coil types in both reflection and bridge configurations. This scanner provides 3 mil to 30 mil scan resolution in 1 mil increments. Variable rotation from 500 to 3000 RPM is adjustable in 10 RPM steps at constant torque throughout the speed range


Eddy Current Bolt Hole Inspection Scanner
The ECS-2 scanner is a high-torque industrial-grade scanner that can easily be integrated into your automated system. This scanner has variable speed capability of 0-1500 RPM and can interface with an ancillary controller for position and speed control.


Mini Rotating Fastener and Eddy Current Bolt Hole Inspection Scanner
The ECS-1 Mini Rotating Scanner is designed for airframe fastener and bolt hole inspections. It is synchronized to provide defect amplitude and circumferential location. Null and Erase buttons are conveniently located near the user's thumb.


Hand-held Eddy Current Bolt Hole Inspection Scanner
The JF-15 is a hand-held bolt hole inspection scanner that complements the UniWest US-450 and US-454 Eddy Current Instruments for high-speed and accurate bolt hole scanning.


UniWest builds both custom and generic reference standards for all your non-destructive testing needs. We can CNC and EDM notch your specific primary or master reference standard with all needed documentation; or notch your customer supplied material needed for your special application.

94910 Universal Eddy Current Sample and Standard Set

Available in a convenient kit form. Test samples for conductivity are FE, TI, 304 SST, CU/NI, MAG, 7075 AL, and 1100 AL. Surface notch standards are .008", .020" and .040" deep. Non-Conductive coating thickness samples are .003", .006", .009", .012", and .015". Conductive coating (CU) thickness samples are .003", .006", .009", .012" and .015". Gauging sample ranges from .010" to .050" in thickness. A wide range of training samples are provided as well as five spaces for your own test samples. This kit is extremely useful in the lab or in the field for checking instrument performance and for training operators.

99834 Fastener Inspection Standard

This fastener inspection standard includes a .010, .015 and .020 thousandths EDM notches to set up a range of Raised Head Fastener probes. The adjustable V-block design allows for quick adjustment for your specific raised head faster probe.

Ultrasonic Reference Standards

UniWest can also build a variety of standard or custom ultrasonic reference standards. Contact UniWest on how we can help with your specific Ultrasonic application.

99073 Aluminum Radius

This standard comes with .010, .020, .030 and .040 thousandths EDM notches for common set up of eddy current surface inspections.

99859 Mini Radius Standard

This aluminum standard includes a 1/8th and ¼ inch radius geometry in addition to a flat, edge and corner notch for setting up common airframe geometry's. This standard can also be manufactured in Titanium or Steel depending on your specific application.

93558A General purpose Crack Standard

This standard comes with .010, .020, .030 and .040 thousandths EDM notches for common set up of eddy current surface inspections. (Available in; Aluminum, Magnesium, Steel, Stainless Steel, and Titanium.)

74499 Aluminum Bolt Hole Standard

This standard has 12 notched holes. With hole sizes ranging from 3/16 - 3/4 of an inch. For calibrating bolt hole inspections.
The standard also comes with .010, .020, and .040 thousandths EDM notches for common set up of eddy current surface inspections.


[caption id="attachment_2812" align="aligncenter" width="300"] Training and Consulting[/caption]

We offer complete training and consulting for UniWest inspection products and their implementation.

RMA Request
To submit a Return Merchandise Authorization (RMA) request, complete the following form. In order to expedite your request, please complete all information below. Please send completed form to and you will be notified once your form is received.



Repair and Service
We offer complete repair and service of all of UniWest products. We also offer long-standing repair and service contracts.

EDM Notching

Electrical Discharge Machining (EDM) is an integral part of UniWest’s machining capabilities. UniWest has now added two new machines, as well as doubling the size of the machine shop. The new CNC controlled machines have been modified to hold large jet engine components (up to 40” diameter), allowing UniWest to handle even the most challenging parts. Electrically discharge machined notches, in a variety of sizes, shapes and locations, can be placed in almost all metals. The width of the notch can be tightly held and gives a fair representation of cracks typically found in the field. Calibration of eddy current measurement systems is an important factor for attaining the accuracy and precision of measurements required for quantitative nondestructive evaluation. UniWest’s unique and sophisticated EDM skills are called upon to do custom EDM work that others cannot perform. UniWest can CNC and EDM notch specific primary or master reference standard with all needed documentation; or notch customer supplied material for your special application UniWest builds both custom and generic reference standards for all your Ultrasonic and Eddy Current testing needs.

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