• Ignores coatings up to 6mm thick using multiple echo and up to 20 mm with Coating Plus+ selected
  • Automatic Measurement Verification (AMVS)
  • Intelligent Probe Recognition (IPR)
  • Ideal for rope access applications
  • Easy to use
  • Large LED display for good visibility in low light conditions
  • Easy calibration with menu driven buttons
  • Rugged, durable and robust
  • Designed for hands free use
  • No zeroing required


Sound Velocity Range: From 1000 m/s to 8000 m/s (0.0394 in/µs to 0.3150 in/µs)
Probes: Single crystal soft faced - 2.25 MHz, 3.5 MHz & 5 MHz
Measurement Range: 1 - 250 mm (0.04” - 10”) depending on probe used
Probe Sizes: 6 mm (0.25”), 13 mm (0.5”) & 19 mm (0.75”)
Measurement Mode: Multiple Echo
Resolution: 0.1 mm (0.005”) or 0.05 mm (0.002”)
Accuracy: ± 0.1 mm (0.005”) or ± 0.05 mm (0.002”)
Display: Red 4 character 7 segment LED
Coatings Range: Up to 6mm (Standard Mode)*; up to 20mm (Coating Plus+)*
Batteries: 3 x disposable ‘AA’ alkaline batteries or rechargeable NiMH / NiCD
Battery Life: Up to 50 hours continuous use using alkaline batteries
Gauge Dimensions: 147 mm x 90 mm x 28 mm (5.75” X 3.5” X 1”)
Gauge Weight: 320 g (11.3 ounces) including batteries
Environmental: Case rated to IP65, RoHS and WEEE compliant
Operating Temp: -10°C to +50°C (14°F to 122°F)
Storage Temp: -10°C to +60°C (14°F to 140°F)


Solent Refit - United Kingdom

“Your gauge is so fool proof to use, all of our people can do their own gauging”

SeaTech Commercial Diving Services Ltd - United Kingdom

“ We have a lot of experience using underwater thickness gauges but my team insist on using only the Tritex gauges now. The Multigauge 3000 gives stable measurements and locks onto readings instantaneously"

Valkyrie Diving - United Kingdom

“The Multigauge 3000 is absolutely brilliant, we love it! If there was any problem we would tell you. Also, the service is excellent!”

Elliot Berry Marine Services - United Kingdom

“Just to let you know I’m very impressed with the gauge and the after sales service is excellent”

Broomfield Marine Services - United Kingdom

“The company is one of the most honest and reliable suppliers I have dealt with…”

Sonometric - South Africa

"Tritex gauges are the best thickness gauges I have used..."

Frankham Consultancy Group Ltd - United Kingdom

“We purchased the Multigauge 5600 which we found to be excellent as was the service from TritexNDT”

Captain Joseph Zerafa - Malta

“Excellent service throughout”

Plant Relaibility Solutions - United Kingdom

"I purchased a Multigauge 5750 which is very easy to use. Tritex were very helpful in assisting us with selecting the right unit for the application. Very good service."

London Underground - United Kingdom

"The feedback from our inspectors is positive - easy to use and accurate."

Farrell Ltd - United Kingdom

"The ultrasonic unit purchased achieves results other equipment cannot provide. The front end support was excellent and the unit proves to be a good investment."

Maziak Compressor Services Ltd - United Kingdom

Maziak Compressor Services prides its self on the services we offer our customers, and this is only as good as our people and the products we use. The Tritex Meter our 3 PSSR inspectors now use, ensure we can be the best.

Kit Contents

Multigauge 5500 gauge, probe, probe lead, spare membranes, membrane oil, ultrasonic gel, 15mm test block, membrane key, batteries, manual, calibration certificate, carry case, belt clip.


Protective leather case.

multiple echo

All Ultrasonic Thickness Gauges should be calibrated to the velocity of sound of the material being measured. Coatings have a different velocity of sound than metal and it is important they are not included in the measurement. Triple echo ensures all coatings are completely eliminated from the measurement.

How it works:

A transmitted ultrasound pulse travels though both the coating and the metal and reflects from the back wall. The returned echo then reverberates within the metal, with only a small portion of the echo travelling back through the coating each time. The timing between the small echoes gives us the timing of the echoes within the metal, which relate to the metal thickness. The returned echoes need not be consecutive as the gauge will interpret them automatically and calculate the thickness. A minimum of three echoes is checked each time. This is referred to as the Automatic Measurement Verification System (AMVS).