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TI-45NHD Ultrasonic Wall Thickness Gauge

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Measuring Range in Steel
0.040 - 8.00 inches
1.00 - 200.0 mm

The new CHECK-LINE TI-45NHD Ultrasonic Wall 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 attractive, ergonomic housing design is extremely compact, lightweight and rugged. It fits comfortably in the palm of your hand and incorporates a back light that illuminates the LCD in poorly lit areas.


  • Resolution of 0.001" (0.01mm)
  • Extremely compact & lightweight
  • Switch-selectable units - inches or mm
  • Built-in calibration test plate
  • Quick display update with last reading retained on the display
  • Display symbols alert user to poor coupling and low battery conditions

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Complete Kit

The TI-45NHD is supplied as a complete kit with the gauge and wrist strap, probe and cable assembly, 2 oz. bottle of coupling fluid, batteries and instruction manual -- all supplied in a fitted, hard plastic carrying.

Measuring Limits

Minimum Radius for Convex Surfaces 1" (25.4 mm)
Minimum Radius for Concave Surfaces 3" (76.2 mm)
Minimum Headroom 3" (76.2 mm)
Minimum Sample Diameter 0.5" (12.7 mm)
Minimum Substrate Thickness - F na
Minimum Substrate Thickness - NFe na


Range in Steel0.040 - 8.000" (1.0 - 200.0 mm)
Resolution.001" (0.01 mm)
Display4½ - digit LCD display, 0.39" (10mm) high with push button illumination
Velocity Range3,250 - 39,000 ft/sec
(1,000 - 12,000 m/sec)
continuously adjustable
Probe5 MHz, .39" (10 mm) diameter without Centering Shell
Cable39" (1m) 2-wire, long cable with quick-disconnect connectors
Minimum Pipe Size1" nominal (30mm) steel pipe
Temp. LimitsAmbient: 25 to 125° F (-5 to 50° C)
Material: -15 to 140° F (-10 to 60° C)
Calibration Plate0.250" (6.35mm) steel plate, built into the front of the housing
Battery TypeTwo AA batteries
Battery Life200 hours
WeightGauge: 7 ounces (200 g)
Size5.2" x 2.7" x 1.1"
(131 x 68 x 29 mm)
WarrantyGauge: 1 years
Probe: 90 days
Accessories IncludedFitted, hard-plastic carrying case, probe shell attachment, 2 oz. bottle of coupling fluid, 1 spare battery and operating instruction guide