Checkline TI-25M Ultrasonic Thickness Gauge

Price: $ 1,495.00 up to $ 1,595.00
General purpose gauge measures a variety of materials

Range: 0.025 - 6.00 inches - 0.60 - 150.00 mm

Resolution:0.001" (0.01 mm)

Datalogging: NO

Measuring Range in Steel
0.025 - 6.00 inches
0.60 - 150.0 mm

The  TI-25M Ultrasonic Thickness Gauge accurately measures wall thickness and the extent of corrosion of all metals, ceramics, glass and most rigid plastics - from only one side!

The TI-25M Ultrasonic Thickness Gauge 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.

The TI-25M Ultrasonic Thickness Gauge probe is waterproof and can be submerged in water. The gauge is impact-resistant and environmentally sealed to provide trouble-free operation under the toughest field conditions

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  • Resolution of 0.001 inch (0.01 mm)
  • Large, back-lit LCD display retains last reading
  • Simple operator controls virtually eliminate training
  • Special-purpose probes are offered for a variety of applications
  • 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

lineTypical Applicationsline


lineMeasuring Limitsline

Minimum Radius for Convex Surfaces0.350" (8.89 mm)
Minimum Radius for Concave Surfaces3" (76.2 mm)
Minimum Headroom1" (25.0 mm)
Minimum Sample Diameter0.150" (3.8 mm)
Minimum Substrate Thickness - Fna
Minimum Substrate Thickness - NFena


Range in Steel0.025-6.00" (0.60-150.0 mm)
Resolution.001" (0.01 mm)
Display4½ - Digit, 0.5" Back-lit LCD
Velocity Range6,500-33,000 ft./sec (2000-10,000 m/sec.)
Probe7.5 MHz, 0.25" Diameter (6.35 mm)
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
Weight7 ounces (196 g)
Size2.5 x 4.5 x 1.25"
(64 x 114 x 32 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
Probes: 90 Days

lineSpecial Purpose Modelsline

TI-25M-HHigh Temperature for surfaces up to 650° F or 343° C. Transducer is 0.5" 5.0 MHz, range .050" to 19.99"
TI-25M-107Cast Iron / Plastics
TI-25M-HWHeavy Wall (0.040-19.999")

lineComplete Kitline

The TI-25M Ultrasonic Thickness Gauge is supplied as a complete kit with the gauge, probe, 4 oz. bottle of coupling fluid, 2 AA batteries, NIST Calibration Certificate, and Operating Instruction Manual - all in a foam-fitted carryingcase

lineOptional Accessoriesline

NIST-Traceable Steel Test Block
3 Sizes Available

  • Precision Machined and Finished
  • Includes NIST Report and Test Data


Uncertified Steel Test Block
For Ultrasonic Gauges
  • For convenient confirmation of thickness gauge calibration


Protective Holder for Ultrasonic Gauges

  • Constructed from heavy duty Cordura Nylon
  • Built-in belt loop


Coupling Fluid

  • Used to create an ultrasonic coupling between the probe and material to be measured
  • 12 oz Bottle


Transducer Holder

  • The V-Block transducer holder offers the operator greater control and repeatabily when measuring on pipes and other curved areas


50 Foot Underwater Probe / Cable Assembly

  • 50 Ft. Length, Waterproof Probe/Cable assembly with non-polarized, Dual-Lemo connectors


Checkline TI-25M Ultrasonic Thickness Gauge - Certificate
Checkline TI-25M Ultrasonic Thickness Gauge - Probe Zero
TI-25M Ultrasonic Thickness Gauge - Instruction Manual
TI-25M Ultrasonic Thickness Gauge - Calibration
TI-25M Ultrasonic Thickness Gauge - Data Sheet

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