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TI-25M-UWM Replaced by TI-UMX2

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Measuring Range in Steel
0.050 - 19.99 inches
1.27 - 508.0 mm

The new CHECK-LINE TI-25M-UWM Underwater Wall Thickness Gauge accurately measures wall thickness and the extent of corrosion of all metals at depths of up to 300 feet (91.44 M).

The TI-25M-UWM can be used in a Single Thickness Reading mode or in a Scan mode , where the probe is dragged over a large measuring area. The minimum thickness reading recorded during the "scan" will be displayed.


  • Resolution of 0.001 inch (0.01 mm)
  • Large, backlit LCD display retains last reading
  • Simple operator controls virtually eliminate training
  • Special-purpose probes are offered for a variety of applications
  • 300 feet depth rating
  • Clear plexiglass construction, Stainless steel connectors, latches, and control bar
  • Switch-selected units for inches or mm
  • CE Certified
  • NEW Elastic wrist strap secures the gauge during dives

Complete Kit

The TI-25M-UWM is supplied as a complete kit including gauge, underwater enclosure, underwater transducer, coupling fluid, instruction manual and calibration certificate in a foam lined hard plastic carrying case.

Related Products

umx2 underwater ultrasonic thickness gauge
Click image for more info
Underwater Ultrasonic Thickness Gauge
TI-25M Wall Thickness Gauge
Click image for more info
- Resolution of 0.001 inch (0.01 mm)
- Simple operator controls virtually eliminate training
Click image for more info
50 Foot Underwater Probe / Cable Assembly
- 50 Ft. Length, Waterproof Probe/Cable assembly with non-polarized, Dual-Lemo connectors.


Range in Steel0.050-19.99" (1.27 - 508.0 mm)
Resolution.001" (0.01 mm)
Display4½ - Digit, 0.5" Backlit LCD
Velocity Range6,500-33,000 ft./sec (2000-10,000 m/sec.)
Probe5 MHz, 0.5" Diameter
Cable4 ft. (1.2 m) waterproof cable with non-polarized, quick-disconnect connectors. Optional lengths up to 50 ft. (15 m).
Temp. LimitsAmbient: -20 to 120° F (-30 to 50° C)
Material: -0 to 200° F (-20 to 100° C
Special high temperature probes are optionally available.
Battery TypeTwo AA batteries
Battery Life200 hours
Weight2.8 pounds
Size3.5 x 7.5 x 2.75"
(63.5 W x 190.5 H x 69.85 D mm)
Accessories IncludedProbe/cable assembly. 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case.
WarrantyGauge: 5 Years
Probe: 90 Days
Enclosure: 1 year


Buy Now

Item Description Price
Replaced by TI-UMX2 - Please contact us for pricing and availability.
1/2" diameter, 5.0 MHz dual element transducer for TI-25M-UWM, Top in, Potted
SoundSafe Coupling Fluid - 12 oz / 354 ml - NSN: 6635-01-553-0559
4-pack AA Ni-MH Rechargeable Batteries & Charger Kit
Maintenance Kit for TI-25-UWM Undserwater Enclosure including repalcement O-Rings & Lubricant
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.