UT Thickness Gauges


Price on request


Price on request


Sonatest AlphaGage+ is a primary inspection tool for corrosion assessments, which uses dual element transducers in a Pitch & Catch configuration to reduce surface problems and to measure accurately the remaining wall thickness of various metallic structures subject to corrosion.

This product is a key tool to inspect ageing assets and solve problems in the Oil & Gas or Petrochemicals industries.

Typical applications include: metal pipe works, pressure vessels, structural parts, storage tanks




Thickness Range (Corrosion Mode)

Thickness Range (Precision Mode)

Velocity Range

Resolution (Corrosion Mode)

Resolution (Precision Mode)

Measurement Rate

Differential Mode

Gain Settings


Connector Type

Display Type

Display Size

Operating Temperature

Data Storage

Size (L x W x H)




Single or Dual element (according to gauge model)

Typical range in steel 0.508mm to 584mm

Typical range in steel: 0.152 to 584mm and as low as 0.076 mm (.003”) in plastics

0.508 to 18.699 mm/s

0.01 mm or 0.1 mm

0.001 mm or 0.01 mm

4 Hz or 25 Hz

Displays the difference from actual thickness measurement in absolute or percentage of a user entered reference value

Manual adjustment (Low, Standard, High) and Automated Gain Control (AGC)

Vibrate (ideal for loud environments), beep or change the colour of the main display

Lemo 00

High resolution colour TFT display, 320 x 240 pixels, sunlight readable

3.5”, 320 x 240 pixels

-20 to 50°C (-4 to 122°F)

With Data Logging (DL) option, a 2GB micro SD card is included (expandable up to 32GB)

184 mm (7.25”) x 102 mm (4.00”) x 51 mm (2.00”)

520 g with internal Li-ion battery / 450 g with optional alkaline tray (3xAA batteries)

Limited 2 year warranty under normal use on parts and labor

Great user interface design

Ergonomic enclosure & accessories

Fast Min/Max mode at 25 Hz

Large hi-resolution LED backlight

Colour screen or vibration alarms

Multiple sizes reading display

Custom design for IP67 rating

Up to 27hr continuous operation

Re-chargeable via USB port