Elcometer 204 Steel Ultrasonic Thickness Gauge

The Elcometer 204 Steel Ultrasonic Thickness gauge is a handheld gauge providing fast and accurate measurements of the thickness of steel. The principal advantage of ultrasonic measurement over traditional methods is that ultrasonic measurements can be performed with access to only one side of the material being measured.

The Elcometer 204 is pre-calibrated for ease of use and the gauge can be "zeroed" to ensure accuracy. It is capable of measuring the thickness of material such as steel plate with repeatable accuracy.

Battery powered, the Elcometer 204 features an easy read backlit screen making it ideal for use in low light areas. Supplied with everything required to start measuring as soon as the gauge is received, the Elcometer 204 provides an ideal, low cost solution for measuring thickness of steel.

  • Low cost and easy to use:
    • Provided with everything required to use straight from the box.
  • Ready to use:
    • Supplied complete with transducer and gel - ready to use straight from the box.
  • Probe Zero:
    • "Zeroing" the gauge ensures correct measurements.
0.63mm to 199.99mm (0.025" to 19.999")

0.01mm (0.001")
±2% of reading or ±0.5mm (±0.02"), depending on material and conditions
295g (10oz) including batteries
63.5 x 120.6 x 31.5mm (2.5 x 4.5 x 1.24")
Operating Temperature
-30°C to 50°C (-20°F to 120°F) depending on climatic conditions
Extruded aluminium body, Nickel plated aluminium end caps
Battery Life*
200 hours continuous (alkaline dry batteries)
Battery Type
2 x LR6 (AA), alkaline dry batteries or rechargeable equivalents.
Packing List
Elcometer 204 Steel Ultrasonic Thickness Gauge, Transducer with calibration certificate, bottle of couplant, 2 x batteries, carrying case, operating instructions
* Rechargeable batteries can be used if they are recharged outside the gauge. Battery life is reduced to approximately 120 hours when using rechargeable batteries.
Model Description
Part Number
Elcometer 204 Elcometer 204 Steel Ultrasonic Thickness Gauge
Spares / Accessories Transducer: Potted right angle 5.0MHz ¼" T92015646
Ultrasonic couplant T92015701
High Temperature Ultrasonic Couplant T92015874
Instrument Carry Case T92015617
Test Wedge: 2-25mm T9205243-
Test Wedge: 30-100mm T9205270-

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