Dakota Ultrasonics MX-3

Dakota Ultrasonics MX-3

Adjustable velocity and scan modes


This item has been discontinued, click on the link for the alternative - ZX-3

The MX-3 has adjustable material velocity and a scan mode.

The advantages of this gauge include:

  • Precise calibration to your material. Using either a calibration block or a known thickness of your material, simply adjust the reading until they match.
  • The "Scan-mode" improves pitting detection. Just turn on the "Scan-mode" and scan your pipe or tank. The instrument will lock-in on the thinnest point scanned.

With the hand held MX-3 Ultrasonic micrometer, you can make reliable measurements or scan a length of material for the thinnest point. The tool's backlit display is easy to read, even in dim light and the unit operates for up to 200 hours on a single set of batteries. The MX-3 comes complete, ready to use and is protected by Dakota Ultrasonics 5 year limited warranty.


  • Weight: 10 ounces
  • Size: 2.5 W x 4.75 H x 1.25 D inches
    63.5 W x 120.7 H x 31.8 D mm
  • Operating Temperature: -20 to 120F (-20 to 50C)
  • Case: Extruded aluminum body / nickel plated aluminum end caps. Resistant to impact and environmentally sealed.


  • Sealed membrane that is resistant to both water and petroleum products.
  • Six tactile-feedback keys


  • Dual element (transmit and receive)
  • 1 to 10 MHz frequency range.
  • Locking quick disconnect Lemo connectors
  • 4 foot cable
  • Custom transducers available for special applications


  • Two 1.5V alkaline or 1.2V NiCad AA cells.
  • Typically operates for 200 hours on alkaline and 130 hours on NiCad.


  • Multi-function 4.5 digit liquid crystal display with 0.500 inch numerals, backlit for use in poor light conditions.
  • Measurements displayed in inches, inches/microsecond, millimeters and meters/second.
  • Bar graph indicates stability or reading.


  • Factory calibration traceable to national standards.


  • 5 year limited


  • Range: Measures from 0.025 to 19.999 inches (0.63 to 500 millimeters)
  • Switch to select English or metric units.
  • Resolution: 0.001 inch (0.01 millimeter)
  • Velocity Range: .0492 to .3937 in/m s. 1250 to 10,000 meters/sec
  • Built-in: Stainless steel reference disk for probe zeroing.
  • Four readings per second for single point measurements or 16 per second in SCAN mode.
  • Single and Two point calibration option included.

MX-3 Kit Includes: Unit, Standard Transducer (5MHz x 1/4"), Couplant, Manual, Plastic Carrying Case, AA Batteries and Calibration Certificate.

Product Literature

Description Part # Saved Price Select Option Add to
MX-3 Kit Includes: Couplant, Manual, Plastic Carrying Case, and AA Batteries; Probe 5 MHz x 0.25" T-102-2000. 5 year warranty. UT-DU-Z-112-0001 Request Pricing
UMX Underwater Enclosure for Marine Inspections - Depth Rated, 300' UT-DU-A-112-6002 Request Pricing
PZX Series Nylon Instrument Case UT-DU-F-112-0005 $55.00