Thickness Gauge Probes

Thickness Gauge Probes

Thickness Gauge Probes

Depending on your application there are various probes that are required to achieve the best result.  Some are for denser material and others are best suited for rounded surfaces.  See below for the various options that we can supply.

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The Starr instruments TGD-100 comes with a 10mm Diameter 5MHz probe as standard with LEMO 00 connections.  This is also common to a large number of other ultrasonic thickness gauges and suits most applications.  From time to time applications can't be completed with the standard probe due to access, thickness of material or temperature.  To solve this issue we have a range of additional probes available that come with the LEMO 00 connection so as to work with your TGD-100 or other ultrasonic thickness gauge with the same connections.

Mini Probe (6mm)

Used for curved surfaces with a diameter of at least 15mm.  The smaller surface area of the probe, 6mm diameter, allows for better coupling with the curved surface of the material that is being measured.  This probe also suits measurement of thinner materials with a frequency of 5MHz.

Right-angled 90° Probe

Used for access where the is not enough room for a straight probe.

2MHz Probe

The 2MHz probe is used for high penetration.  With a lower frequency and longer wavelength it is used to get readings on thicker samples.

High Temperature Probe

The high temperature probe has a special casing that allows for the measurement of thickness of materials that are at a temperature of up to 300°C

For any further assistance please contact us.


Probe Feature Range (Steel) Diameter Frequency Operating Temp
TGP5S10 Straight 1.2 ~ 225mm 10mm 5MHz -10°C ~ +60°C
TGP5R10 90° Angle 1.2 ~ 225mm 10mm 5MHz -10°C ~ +60°C
TGP5R6 Small Diameter 0.8 ~ 30mm 6mm 5MHz -10°C ~ +60°C
TGP5HT12 High Temperature 5 ~ 80mm 12mm 5MHz -10°C ~ +300°C
TGP2R10 High Penetration 4 ~ 260mm 10mm 2MHz -10°C ~ +60°C


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