Original Elcometer 204 Steel Thickness Gauge - Discontinued


Replaced by the Elcometer MTG

Pre-calibrated for ease of use, the Elcometer 204 Steel Ultrasonic Thickness Gauge provides a fast, accurate measurement of the thickness of steel.

Each steel thickness gauge is supplied with an integrated steel “zero” plate to ensure the greatest accuracy. Supplied with a transducer & ultrasonic couplant, simply switch on the steel thickness gauge and take readings. The inbuilt backlight allows measurements in low light conditions.

  • Supplied with everything required for use
  • Low cost and easy to use
  • Measures material thickness when there is access to only one side

Technical Specification

Part NumberDescription
-Elcometer 204 Steel Ultrasonic Thickness Gauge
Maximum Measurement Range0.63mm to 199.99mm or 0.025” to 19.999” (switchable)
Accuracy±2% of reading or ±0.5mm (0.02”), depending on material and conditions
Resolution0.01mm (0.001”)
Weight295g (10oz) Including batteries
Dimensions63 x 120 x 31mm (2.5 x 4.5 x 1.24”)
Operating Temperature-30°C to 50°C (-20°F to 120°F) depending on climatic conditions
CaseExtruded aluminium body, nickle plated aluminium end caps
Battery Life200 hours continuous use (alkaline dry batteries)
Battery Type2 x AA batteries
Packing ListElcometer 204 Steel Ultrasonic Gauge, transducer, calibration certificate, ultrasonic couplant, 2 x batteries, carry case and operating instructions


ASTM E 797, EN 15317