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TI-25DL-MMX Data Logging Through Paint Ultrasonic Wall Thickness Gauge

Made in  USATI-25DL The TI-25DL-MMX precisely measures wall thickness using ultrasonics. Materials that can be measured are all metals, ceramics, glass, and most rigid plastics. Measurements can be made from a single side!

The TI-25DL-MMX has 2 measuring modes: Single Thickness Reading mode which measures the thickness on one point and the Scan mode which measures over a larger measuring area by “dragging” the probe: the minimum thickness encountered during the scan will be displayed then.

The gauge has a built-in memory for 1000 data points that can be separated into 10 separate "batches". You can download the stored data to a serial printer or PC and with no additional costs a Windows compatible data transfer program is supplied.

The probe of the TI-25DL-MMX wall thickness gauge is waterproof and can also be submerged in water. It is ideal to use in tough field conditions because the gauge is impact-resistant and environmentally sealed.

Pulse-Echo Mode (Pit & Flaw Detection) measures from 0.63 to 500 millimeters (0.025 to 19.999 inches).
Echo-Echo Mode (Through Paint & Coatings) measures from 2.54 to 25.4 millimeters (0.1 to 1 inch).


  • Resolution of 0.001 inch (0,01 mm)
  • Simple operator controls virtually eliminate training
  • Ability to measure through paint and eliminate coatings
  • Large, backlit LCD display retains last reading
  • Special-purpose probes are offered for a variety of applications
  • Memory for 1000 data points in up to 10 batches
  • RS-232C Serial output for downloading stored data to a printer or computer
  • Switch-selected units for inches or mm
  • For underwater surveying, probe cable lengths up to 50 feet are optionally
  • CE Certified
  • Includes NIST Calibration Certificate

Typical Applications

Typical Applications



  • Precision Machined and Finished
  • Includes NIST Report and Test Data
  • Includes Wooden Storage Box

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  • Uncertified Steel Test Block
  • For convenient confirmation of thickness gauge calibration
  • 4 steps: 2.54 | 5.08 | 10.16 | 15.24 mm

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  • Constructed from heavy duty Cordura Nylon
  • Belt loop included
  • Includes wrist & shoulder straps

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  • The V-Block transducer holder offers the operator greater control and repeatabily when measuring on pipes and other curved areas.
    For 3/16" & 1/4" Transducers only.

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  • Used to create an ultrasonic coupling between the probe and material to be measured
  • Available in different volumes - 125ml / 250ml / 500ml / 1ltr / 5ltr / 25ltr
  • Temperature Range: -5 to 97 ºC

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  • RS232 (DB-9 to Lemo) Data Cable 182cm

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  • Compatible for Windows Vista and Windows 7.

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  • Temperature Range:
    0° to 600° F
    -18° to 315° C
  • Very slow drying; allows for long-term coupling without reapplication
  • Excellent corrosion inhibition
  • Supplied in 118ml / 4oz tube

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  • Temperature range from 316ºC to 404 ºC
  • Very slow drying; allows for long-term coupling without reapplication
  • Excellent corrosion inhibition
  • Supplied in 120ml tube

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  • Easy planning of calibration
  • Short turnaround
  • Exclusively in accordance with DIN 55 350 Part 18, § 4.2.2, DIN ISO 8402 Part 1
  • Possibility to adjust and repair

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Complete Kit

The TI-25DL-MMX is supplied as a complete kit with the gauge, probe, 4 oz. bottle of coupling fluid, 2 AA batteries, NIST Calibration Certificate, data transfer software, serial output cable and Operating Instruction Manual - all in a foam-fitted carrying case.

Model Selection Guide

Selection Guide - Pit & Flaw Detection (Pulse-Echo) Mode
Model Number Maximum Coating Minimum Wall Maximum Wall
All Models 0.50mm (0.020") 1,01mm (0.100") 152.4mm (6.000")
Selection Guide - Thru-Paint (Echo-Echo) Model
Model Number Maximum Coating Minimum Wall Maximum Wall
TI-25M-MMX 1.00mm (0.040") 2.54mm (0.100") 25.4mm (1.000")
TI-25M-MMX-EXT 2.00mm (0.080") 5.08mm (0.200") 127.0mm (5.000")

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 25,4 mm
 Minimum Sample Diameter Minimum Sample Diameter 3,8 mm
Minimum Substrate Thickness - F Minimum Substrate Thickness - F NA
Minimum Substrate Thickness - NFe NA


Pulse-Echo Mode (Pit & Flaw Detection) measures from 0.025 to 6.000 (up to 19.999 inches if uncoated using T-102-2000 probe)0.63 to 150 millimeters (up to 500 mm if uncoated using T-102-2000 probe).
Echo-Echo Mode (Through Paint & Coatings) measures from 2.54 to 25.4 millimeters (0.1 to 1 inch)
0.01 mm (.001")
4½ - Digit, 0.5" Backlit LCD
Velocity Range
0.0492 to .3937 in./µs. (1250 to 10.000 meters/second)
5 MHz, 6.35 mm Diameter (0.25")
Probe Wearface
PEEK (Polyethlethylketone)
1.2 m (4 ft.) waterproof cable with non-polarized, quick-disconnect connectors. Optional lengths up to 15 m (50 ft.).
Temp. Limits
Ambient: -30 to 50° C (-20 to 120° F)
Material: -20 to 100° C (0 to 200° F)
Special high temperature probes are optionally available
Serial Output
RS-232C (8, N, 1, user-set baud rate)
Battery Type
Two AA batteries
Battery Life
200 hours
196 g (7 ounces)
64 x 114 x 32 mm
(2.5 x 4.5 x 1.25")
Gauge: 5 Years
Probes: 90 Days
Accessories Included
Probe/cable assembly. 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case.

Download DataComm 2 Software


Related Products

DataComm Software

  • Compatible for Windows Vista and Windows 7.

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Product name
TI-25DL-MMX Complete kit
€ 1.741,00 
TI-25DL-MMX-EXT Complete Kit
€ 1.741,00 


Product name
TICC-M - Protective holder
€ 61,00 
CF-AN - Coupling Fluid - 200ml
€ 15,00 
Calibration Certificate - Calibration Inspection Certificate
€ 99,00 
V-Block Transducer holder
€ 189,00 
N-306-0010 - RS232 Data Cable 182cm
€ 136,00 
TI-SB4 - Uncertified Steel Testblock
€ 136,00 
TI-SB-4H - Steel Test Block
€ 372,00 
TI-SB-4L - Steel Test Block
€ 372,00 
TI-SB-5L - Certified Steel Test Step Block
€ 372,00 
T-102-2700 - 5 MHz MMX Probe1/4"
€ 329,00 
T-104-9700 - Spare / Replacement Probe for TI-25DL-MMX-EXT
€ 345,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available , preorder 1-2 weeks , special order, request
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