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ZX-1 Ultrasonic Thickness Gauge

Material Thickness Gauge

The Dakota ZX-1 ultrasonic thickness gauge is a fixed velocity ultrasonic material basic dual element thickness gauge ideal for material day after day.

ZX-1 Ultrasonic Thickness Gauge can measure the thickness of various materials with accuracy as high as ± 0.001 inches, or ±0.01 millimeters with the ability to locate blind surface pitting and internal defects/flaws in materials

ZX series is the latest generation material thickness gauge with >120kHz FPGA timing. >150 volts square wave pulsar >0.63 to 914.4mm measurement range.

Product Specification

Total Measuring Range

0.025 - 36.000 inches
0.63 - 914.4 mm
(depends on material and transducer/probe type)

Measuring Range

0.040-8.000 inches
1.00-199.9 mm
(with standard transducer T-102-2000)


0.001 inch (0.01 mm)

Measuring Mode

Pulse-Echo (P-E)

Velocity Range

0.0120 to .7300 in/μs. 305 to 18,542 meters/sec


200 Hz

Probe (Standard)

1/4", 5 MHz Dual Element Transducer, actual wearface is 5/8" (17mm), p/n T-102-2000


1.2m (4ft.) waterproof cable with non-polarized, quick-disconnect connectors

Probes (optional)

1 to 10 MHz, 3/16" up to 1/2 inch (custom probes available)


Probe Wearface

PEEK (Polyethylethylkytone)

LCD Display

Multi-function 7 segment 4.5-digit liquid crystal display with 0.500" digit height. Two 0.125 in14 segment fields for labels and values, and one 7 segment field for labels and values. Additional icons to indicate features and modes

Display Backlight

Backlight is selectable on/off/auto, and selectable brightness (Lo, Med, Hi) options

Display Update Rate

10 Hz (10 updates/sec)

Temp. Limits

Ambient: -30 to 75° C (-22 to 167° F)
Material: -20 to 100° C (0 to 200° F)
High temperature probes available

Battery Type

2x AA batteries (rechargeable batteries can be used)

Battery Life

45 hours continuous use


Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed)

Housing Rating



Sealed membrane that is resistant to both water and petroleum products
Seven or eight tactile-feedback keys


308 grams (11 ounces)


63.5 x 131.3 x 31.5 mm (2.5" x 5.17" x 1.25")


Probe/cable assembly, 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case.


NIST Traceable and MIL-STD-45662A

To Lock Settings

With gauge powered off, press and hold the "+" key while powering on the gauge
The LOCK icon will be illuminated on the Display

To unLock Settings

With gauge powered off, press and hold the "-" key while powering on the gauge
The LOCK icon will turn off

  • Includes NIST Traceable Calibration Certificate
  • Resolution of 0.001 inch (0.01 mm)
  • Switch-selected units for inches or mm
  • Selectable Backlight ON/OFF/AUTO
  • Dual element transducer options from (1 to 10 MHz frequency)
  • Special-purpose probes are offered for a variety of applications (1 to 10 MHz)
  • The Transducer (probe) is waterproof and can be submerged in shallow water
  • The extruded aluminum housing is impact-resistant and environmentally sealed (IP 65) 
    to provide trouble-free operation under the toughest field conditions
  • For underwater surveying, an optional 50 ft (15 meter) underwater probe/cable is available
  • 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
  • Operates on two (2) AA Batteries - 45 hours continuous operation
  • Adjustable Velocity (calibration) is manually adjusted via the keypad
  • CE-Certified and Made in USA
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