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TI-25MX Adjustable Wall Thickness Gauge

Made in the USAThe TI-25MX is a high-performance ultrasound wall thickness gauge which is especially designed to withstand tough industrial environments and exigent applications such as in non-destructive testing of corrosion and pitting on pipes, tanks, boilers and glass amongst others.The housing is made of extruded aluminium, shockproof and sealed against environmental influences (IP65) and is combined with a waterproof probe.

Thanks to its simple design and easy navigation, this adjustable wall thickness gauge is suitable for experienced users as well as users with less experience.

The sound velocity of the TI-25MX can be set directly at the unit from 305 to 18,542 m / s and enables a quick and precise measurement of wall thicknesses of more than 40 materials. The measuring range of 0.63 - 150 mm (up to 914mm depending on the probe and material) with a resolution of 0.01 mm, make this TI-25MX an absolute "all-round talent".

Some great features from the TI-25SX can also be found in the adjustable TI-25MX:

- Possibility to select from 8 pre-set sound velocities

- 2 programmable sound velocities

- Free adjustment of the speed of sound via the keyped (with the calibration of the device to a sample with known thickness)

In addition, a 2-point calibration of two patterns of known thickness can be set for the utmost accuracy over a wide bandwidth. The optimal speed of sound is calculated automatically to ensure highest accuracy as well as linearity.

In addition to a single-measurement mode, the TI-25MX also provides the possibility of a surface scan: in the scan mode, the probe can be guided over a large surface. The smallest measured value recorded during the scan is directly shown on the display.

Since we have deep faith in the quality of our TI series, this wall thickness gauge comes with a 5-year warranty.








  • Measuring range:
    0.63 - 150 mm (with standard probe T-102-3300) - 0.63 - 914 mm (depending on probe and material)
  • Resolution: 0.01 mm
  • Measuring unit switchable between mm and inch
  • 2-point calibration on samples of known thickness for highest accuracy and linearity
  • Adjustable GAIN for fine adjustment of difficult materials and applications
  • Surface scan with 100 measurements per second
  • Backlit LCD display extended information
  • Status bar provides information about the stability of the measurement
  • Pulse-Echo Measurement
  • Including NIST traceable calibration certificate
  • Sealed membrane control panel resistant to water and petroleum products
  • IP65 classified
  • 5 years warranty

Typical Applications
Typical Applications

Additional functions

Automatic or manual zeroing of the probe.

Probe diameter:
Specify the probe diameter for increased linearity.

High-speed surface scan:
Returns the lowest value detected during a 100 Hz scan.

Differential mode:
Returns the ± difference from an entered nominal value.

Alarm Mode:
Adjustable maximum and minimum limits. Exceeding the limit warns a visual and audible alarm.

2-point calibration:
Automatically determines the correct speed of sound from a calibration on 2 samples of known thickness.



Measuring Limits
Minimum Radius for Convex Surfaces Minimum Radius for Convex Surfaces 8.89 mm
Minimum Radius for Concave Surfaces 76.2 mm
Minimum Radius for Concave Surfaces Minimum Headroom 25.0 mm
Minimum Sample Diameter Minimum Sample Diameter 3.8 mm
Minimum Substrate Thickness - F Minimum Substrate Thickness - F -
Minimum Substrate Thickness - NFe -

Complete Kit

  The TI-25MX id delivered in a complete, which includes everything you need to get started. The set consists of:

  •      TI-25MX wall thickness gauge
  •      Ultrasound probe - T-102-3300
  •      120ml coupling fluid
  •      NIST traceable calibration certificate
  •      2 AA batteries
  •      Operation manual


A-302-6002 A-302-6002 protective cover for TI series

More details

A-302-6002 A-302-6002 protective cover for TI series 127313

Category Wall Thickness Probes

More details

Category  Wall Thickness Probes 810

Measuring range: 0.63 - 150 mm (with standard probe T-102-3300) - 0.63 - 914 mm (depending on probe and material)
Resolution: 0,01 mm
Measurement Modus: Pulse-Echo (P-E)
Sound velocity: Adjustable from 305 - 18,542 m / s
Display: Large LCD display with 4.5 digits each 1.3 cm high -Adjustable backlight
-Division into individual segments to ensure clear reproduction of advanced information
Display refresh rate: 10 Hz
Pulse rate: 200 Hz (200 Pulse/sec)
Gain: 40-52 dB range in 3dB steps
Probe head (standard): T-102-3300 1/4 ", 7.5 MHz Dual-Element Probe Contact Surface 5/8" (17mm) Made of PEEK (Polyethylethylcytone)
Probe head (optional): 1 - 10 MHz, 3/16" bis 1 inch
Probe head cable: 1.2m long waterproof cable with unpolarized connections
Measurement units: Selectable mm and inches
Power supply: 2x AA batteries (rechargeable batteries can be used)
Battery life: 45 hours of continuous use
Temperature limits: Environment: -30 - 75 ° C
Material: -20 - 100 ° C
Probes for higher temperatures available
Housing: Extruded aluminum body with nickel coated end caps (seal sealed)
IP-Classification: IP65
Measurements: 63,5 x 31,5 x 131,3mm (LxWxH)
Weight: 308 gr
Certifications: NIST traceable and MIL-STD-45662A
CE Certified
Warranty: Gauge: 5 years
Probe: 90 days

Buy Now

Product name
TI-25MX Wall Thickness Gauge
£ 1.141,00 
TI-25MX-WOP Wall Thickness Gauge without Probe
£ 991,00 

Product name
A-302-6002 - Protective Rubber Boot For TI-Series Small
£ 75,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability : Available , preorder 1-2 weeks , special order, request

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