http://www.jinstartech.com/

General Attributes:

CheckLine TI-25LTX very good price

TI-25LTX Steel Only Ultrasonic Wall Thickness Gauge

Measuring Range
0.040 - 6.000 inches
1.00 - 150.0 mm
Resolution
0.005 inch (0.05 mm)

The Checkline TI-25LTX is a simple to use wall thickness gauge is designed for measuring wall thickness and the extent of corrosion of steel. It is commonly used for checking the thickness of pipes, tanks, plates, and other objects. It is designed and built to withstand harsh industrial conditions and is backed by a 5 year limited warranty.

The TI-25LTX has a fixed velocity of .2330 in/μs. / 5920 meters/sec which is the speed sound travels through common steel. It can't be adjusted for any other materials other than steel.

Features

• Includes NIST Traceable Calibration Certificate
• Resolution of 0.005 inch (0.05 mm)
• The Transducer (probe) is waterproof and can be submerged in shallow water
• Special-purpose probes are offered for a variety of applications (1 to 10 MHz)
• Switch-selected units for inches or mm
• The extruded aluminum housing is impact-resistant and environmentally sealed (IP 65)
  to provide trouble-free operation under the toughest field conditions
• High visibility LCD Display is readable in all lighting conditions and temps as low as 22 °F (-30 °C)
• LCD shows Thickness Value, Velocity Setting, Stability Indicator, Battery Indicator and units
• Acoustic Velocity (calibration) is manually adjusted via the keypad
• Operates on two (2) AA Batteries - 45 hours continuous operation
• Selectable Backlight ON/OFF/AUTO
• Warranty: Gauge: 5 Years Probes: 90 Days
• Made in USA