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Ultrasonic Wall Thickness Gauges
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TI-25LT Low Cost Thickness Gauge

TI-40N Standard Thickness Gauge
TI-25M Industrial Thickness Gauge
TI-25DL Industrial Thickness Gauge with Data Logging
TI-25M-MMX Thru-Paint Thickness Gauges
TI-25DL-MMX Thru-Paint Thickness Gauges with Data Logging
TI-007 Precision Thickness Gauge
TI-007DL Precision Thickness Gauge with Data Logging
TI-1071 Intrinsically Safe Thickness Gauge
Certified Steel Test Blocks

Low Cost,
Ultrasonic Wall Thickness Gauge

Measuring Range
0.040 - 6.00 inches
1.00 - 150.0 mm

The new CHECK-LINE TI-25LT Wall Thickness Gauge accurately measures wall thickness and the extent-- from only one side!

Standard configuration: In its standard configuration, the TI-25LT is factory set to measure steel only.

Optional configuration: As a "no cost" option, the TI-25LT can be factory set to measure on any other single material instead of steel.

TI-25M ultrasonic wall thickness gauge

Easy upgrade to full TI-25M functionality (refer to separate data sheet). TI-25M measures on all metals, ceramics, glass and most rigid plastics. It provides Single Reading and Scan modes, where the probe is dragged over a large measuring area. The minimum reading recorded during the "scan" is displayed.

Upgrade to TI-25M requires factory installation of enhanced circuit board, new firmware and keypad.


Features of the TI-25LT ultrasonic thickness gauge:

 Resolution of 0.004 inch (0.04 mm)
 Large, backlit 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
 The TI-25LT 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

Typical Applications for a wall thickness gauge:

Applications for ultrasonic wall thickness gauge

Accessories for the TI-25LT:

Steel Test Blocks

  • Precision Machined and Finished
  • Includes NIST Report and Test Data
  • Includes Wooden Storage Box
4 step steel test block

Protective Holder

  • Constructed from heavy duty Cordura Nylon
  • Includes wrist & shoulder straps
  • Built-in belt loop

Protective holder for ultrasonic thickness gauge

Specifications of the TI-25LT:

Range* 0.040-6.00" (1.00-150.0 mm)
Resolution .004" (0.04mm) 
Display 4 - Digit, 0.5" Backlit LCD 
Velocity Range .0787-.3937 in/s
(2000-10,000 m/sec) 
Probe 1/4", 5 MHz, actual wearface is 5/8" (17mm) 
Probe Wearface PEEK (Polyethylethylkytone) 
Cable 4ft. (1.2m) waterproof cable with non-polarized, quick-disconnect connectors. Op 
Temp. Limits Ambient: -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 Type Two AA batteries 
Battery Life 200 hours 
Weight 710 ounces (280g) 
Dimensions 2.5 x 4..5 x 1.25"
(64 x 114 x 32mm) 
Accessories Probe/cable assembly, 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case. 
Warranty Gauge: 5 Years
Probes: 90 Days 

Measuring Limits

Complete Kit

Complete Kit includes: Gauge, probe, 4 oz. bottle of coupling fluid, 2 AA batteries, NIST Calibration Certificate and Operating Instruction Manual - all in a foam-fitted carrying case. Complete kit of the TI-25LT digital thickness gage


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