The Avenger II by NDT Systems is a rugged & lightweight handheld ultrasonic instrument used daily in the evaluation of investment castings, in-service inspection, plastics, turbine blades, tanks, tubes and pipes.

Incorporating a palmtop design and weighing only 800 grams, the Avenger II allows for a grip-orientated weight distribution to maximise ultrasonic testing efficiency. Single-hand operation frees up the user’s other hand to manoeuvre the probe for a thorough inspection. By utilising just a few keys, the operator can toggle through the menu navigation functions along with the menu architecture of the operating system with ease. A ‘Display Rotation’ or ‘Flip’ feature is an added benefit to assist left-handed users (as well as right) with inspections.

The Avenger II flaw detector includes a Micro USB connection for fast data transfer and the Micro SD Card Slot enables data storage that is expandable up to 32 GB, upon request. Additional standard features are the I/O port for single-axis encoding capability, input and TTL output for an external monitor alarm. The Avenger II features a high capacity Li-Ion battery providing 8 hours of continuous operation with full charge.


  • Ultralight, weighs only 800g
  • Code compliant to AWS Standards
  • 2 Point Auto calibration
  • Single Axis Encoded Scans
  • A-Scan Capture as standard / 100 hours of UT data recording
  • A-Scan and B-Scan Data analysis on the instrument and PC
  • Ruggedized – IP 66 (Dust Tight, High Pressure Water Jet Safe)^&
  • CE Marked


  • Tube and Pipe
  • Tower Construction, Inspection
  • Tanks
  • Chemical milling
  • Investment Castings
  • Turbine blades
  • Metals, plastics, composites, glass, rubber
  • Boilers Glass


Physical / Case 
Weight1.76lb (0.79kg) with battery
(H x W x D)
4.61 in. x 6.92 in. x 2.20 in. (117 mm x 176 mm x 56 mm)
Operating Temperature32 °F to 131 °F (0 °C to 55 °C)
Connector type(2) 00 Lemo connectors
 Power Source 
Power SourceLithium-Ion Battery pack 7.2VDC, 4AH, gives 8 hours continuous operation from fully charged battery
ChargerInput voltage 100 to 250 VAC. Charge status indicators provided.
Display type5 Inch color wide VGA LCD/TFT display with higher resolution LCD for better signal representation and better visibility with different color sets
Display size800 x 480 pixels, screen size 4.25 in. x 2.52 in. (108 mm x 64 mm)
Test Range0.100 in. to 400 in. (2.5 mm to 10 meters) [in steel]. Fine mode adjustable in steps of 0.001/0.01/0.1 or 1 in. (0.01/0.1 or 1 mm).
Measurement UnitMetric or Imperial unit of measurement is selectable.
DampingDamping high/low is selectable
Delay30 in. (120 mm) adjustable
Velocity100dB calibrated gain adjustable in 0.1,0.5, 1, 2, 6, or 14 dB steps
Rejection0 to 125‰ FSH
RectificationFull wave rectified with filtering
FrequencyBroad Band amplifier 0.5 MHz to 15 MHz
Linearity DeviationVertical: 3 ‰, Horizontal 0.5‰
Test ModePulse echo and Transmit/Receive
Update Rate50 Hz
 Other Specifications 
MonitorDual gate adjustable in 1% of Screen width with Positive/Negative Logic, Gate Expand modes
A-Scan memory500 Trace Patterns can be stored (with Note/Detail), recalled, or transferred to PC via USB port. A scan trace patterns can be directly stored on SD card or USB disk.
USB and SD
External USB disk and Micro SD card (up to 32GB) ports provided for data storage
50 different calibration set-ups can be Stored and Recalled
SoftwareAvengsoft Interface software for transferring A-Scan from AVENGER II to PC is supplied
Reference A-Scan pattern of standard test object can saved and recalled in the background for easy comparison during testing
Echo DynamicsEcho dynamic pattern display
DACDynamic DAC curve can be digitally plotted (Smooth bolic curve) on screen with selectable offset curves from 0dB to 14dB in 0.5 dB selectable steps. DAC curve can be set as flaw monitor gate. Using minimum 2 to maximum 10 points.
DGSDefect size evaluation using predefined probe settings and custom probe set-ups, ERS (Equivalent Reflector Size) can also be displayed on the screen
AWSBuilt in Software for Evaluation of defects in accordance with AWS Specification D1.1.
UT Data
Carries out 100 Hours of continuous /Dynamic A-Scan and Recording. B-scan recording (in 8 GB SD Card) which can be replayed and analyzed in Machine as well as PC.
Real time Color coded Un-Encoded B-Scan along with A-Scan on the Screen which can be transferred to PC. Analysis of A-Scan and B-Scan can be done in the machine as well as on a PC.
Digital ReadoutThickness/Depth can be displayed in digital readout when using a normal probe and Sound path; Surface Distance and Depth are directly displayed when angle probe is in use.
  • Availability: 10 In Stock
  • Brand: NDT SYSTEMS

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