Product Description
Technical Specification
Instruction Manual
Data Sheet

Elcometer 204 Steel Thickness Gauge - Discontinued


Replaced by the Elcometer MTG2

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
Elcometer 204 Steel Ultrasonic Thickness Gauge
Elcometer 204 Steel Thickness Gauge

Technical Specification

Part Number Description Certificate
- Elcometer 204 Steel Ultrasonic Thickness Gauge

Maximum Measurement Range 0.63mm to 199.99mm or 0.025” to 19.999” (switchable)  
Accuracy ±2% of reading or ±0.5mm (0.02”), depending on material and conditions  
Resolution 0.01mm (0.001”)  
Weight 295g (10oz) Including batteries  
Dimensions 63 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  
Case Extruded aluminium body, nickle plated aluminium end caps  
Battery Life 200 hours continuous use (alkaline dry batteries)  
Battery Type 2 x AA batteries  
Packing List Elcometer 204 Steel Ultrasonic Gauge, transducer, calibration certificate, ultrasonic couplant, 2 x batteries, carry case and operating instructions 

ASTM E 797, EN 15317

Calibration Certificate supplied as standard


- Transducer: Potted Right Angle 5.0MHz, 6.4mm (¼”) Transducer
- Ultrasonic Couplant - 120ml (4fl oz) Bottle
- Ultrasonic Couplant - 120ml (4fl oz), Pack of 5 Bottles
- Instrument Carry Case
- Test Wedge: 2 - 25mm (0.07 - 0.98”) in 6 Steps
- Test Wedge: 30 - 100mm (1.18 - 3.93”) in 8 Steps