Ultrasonic Material Thickness Gauge Elcometer MTG4-TXC

Reference: MTG4-TXC

Condition: New product

Material Thickness Gauge

The Elcometer MTG Ultrasonic Thickness Gauges combine accuracy, speed and versatility to measure material thickness and sound velocity on virtually any substrate. Ideal for quality control, predictive maintenance, corrosion inspection and on-site verification.

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MTG4 Features

✅ Measurement modes: Pulse-Echo (P-E) and Echo-Echo ThruPaint™ (E-E)
✅ Calibration options: 1-Point, Material and Factory
✅ Default measurement rate of 4 readings per second
✅ USB data output to PC or similar device

With multiple calibration options and measurement modes, the MTG4 is ideal for taking readings on a wide range of coated and uncoated materials.
In addition to including all the features of the MTG2, the MTG4 provides two calibration methods. Using an uncoated sample of the test material with a known thickness, the gauge can be calibrated using the 1-Point method. Alternatively, the user may select one of the 39 pre-set materials stored in the gauge, including aluminium, steel, stainless steel, cast iron, plexiglass, PVC, polystyrene and polyurethane.

The Echo-Echo ThruPaint™ (E-E) mode enables measurements on coated materials with a thickness range up to 20 mm (0.787”). In this mode, the coating thickness is ignored and only the material thickness—from the top surface to the material's density boundary—is displayed.
Compatible with ElcoMaster® software, individual readings can be transferred via USB to a PC or compatible device for further analysis.

The Elcometer MTG4 material thickness gauge complies with the following standards:

✅ ASTM E797
✅ EN 14127
✅ EN15317

Why Choose the MTG Range

Smart: configurable pass/fail limits (audible and visual alerts) per reading or per batch.
Accurate: multiple calibration options (Zero, 1-Point, 2-Point, pre-defined materials) and an integrated zero disk.
Versatile: measures uncoated and coated surfaces using the Echo Echo ThruPaint™ mode up to 2 mm.
Productive: Scan Mode up to 16 Hz, storage for up to 100,000 readings (MTG8) and USB/Bluetooth® connectivity with ElcoMaster®.
Robust: impact-, dust- and splash-resistant construction (equivalent to IP64) with a 2.4" TFT display.
Connected: USB/Bluetooth® to ElcoMaster® (PC, iOS & Android) — for professional analysis and reporting.

Typical Applications

Pipe and tank inspection, corrosion monitoring, metal structures, composites, plastics and engineering materials, through-coating thickness verification, industrial maintenance, oil & gas, automotive, marine and energy sectors.

Measurement modes explained

The Elcometer NDT MTG & PTG range offers several measurement modes designed to help users obtain the most accurate thickness readings. The modes available vary between models, typically increasing in number as the model level advances.

	Pulsed-Echo Mode (P-E): Ideal for pit and flaw detection, this mode measures the total thickness from the base of the transducer to the material’s density boundary, typically the back wall.
	Echo-Echo Mode (E-E): Ideal for measuring thinner materials between 0.15 and 10.15 mm (0.006–0.4"), Echo-Echo mode measures the thickness from the top surface to the material’s density boundary, typically the back wall.
	Interface Echo (I-E): A highly accurate measurement mode, Interface Echo displays the total thickness from the top surface to the material’s density boundary.
	Plastic Mode (PLAS): A mode specifically designed for measuring very thin plastics. This mode requires a special graphite delay line accessory.
	Velocity Mode (VM): Velocity Mode measures the speed of sound in materials and is ideal for assessing material or alloy homogeneity, as well as determining the correct sound velocity required for calibration.

Specifications & Model Comparison

Code				Certificate
¹ Ranges depend on material and transducer. ² Typical values under controlled conditions. ³ Approximate; varies with usage and temperature.
Gauge only	Complete with 5 MHz ¼” right-angle dual element transducer	Description		Yes
	MTG2-TXC	Elcometer MTG2 — Ultrasonic Material Thickness Gauge		Yes
MTG4	MTG4-TXC	Elcometer MTG4 — Ultrasonic Material Thickness Gauge		Yes
MTG6DL	MTG6DL-TXC	Elcometer MTG6DL — Ultrasonic Material Thickness Gauge		Yes
MTG8BDL	MTG8BDL-TXC	Elcometer MTG8BDL — Ultrasonic Material Thickness Gauge		Yes
Model Comparison
Model	MTG2	MTG4	MTG6	MTG8
Measurement Range¹
Pulse Echo (PE)	0.63 – 500 mm (0.025 – 19.999”)	0.63 – 500 mm (0.025 – 19.999”)	0.63 – 500 mm (0.025 – 19.999”)	0.63 – 500 mm (0.025 – 19.999”)
Echo Echo ThruPaint™ (EE)	—	2.54 – 25.4 mm (0.100 – 1.0”)	2.54 – 25.4 mm (0.100 – 1.0”)	2.54 – 20.00 mm (0.100 – 0.787”)
Velocity Mode (VM)	—	1,250 – 10,000 m/s (0.0492 – 0.3937 in/μs)	1,250 – 10,000 m/s (0.0492 – 0.3937 in/μs)	1,250 – 10,000 m/s (0.0492 – 0.3937 in/μs)
Measurement Accuracy²
Pulse Echo (PE)	±0.1 mm (0.63–19.99 mm); ±0.5% (20.00–500.00 mm)	±0.1 mm (0.63–19.99 mm); ±0.5% (20.00–500.00 mm)	±0.05 mm (0.63–9.99 mm); ±0.5% (10.00–500.00 mm); ±0.004” (0.025–0.393”); ±0.5% (0.394–20.00”)	±0.05 mm (0.63–9.99 mm); ±0.5% (10.00–500.00 mm); ±0.004” (0.025–0.393”); ±0.5% (0.394–20.00”)
Echo Echo ThruPaint™ (EE)	—	±0.1 mm (2.54–25.4 mm)	±0.05 mm (2.54–9.99 mm); ±0.5% (10.00–20.00 mm); ±0.004” (0.100–0.393”); ±0.5% (0.394–0.787”)	±0.05 mm (2.54–9.99 mm); ±0.5% (10.00–20.00 mm); ±0.004” (0.100–0.393”); ±0.5% (0.394–0.787”)
General
Operating temperature	-10 to 50 °C (14 to 122 °F)
Power supply	2 × AA batteries
Battery life³	Alkaline: 15 h \| Lithium: 28 h
Gauge weight	210 g (7.4 oz) — with batteries, without transducer
Gauge dimensions	145 × 73 × 37 mm (5.7 × 2.84 × 1.46”), without transducer
Package Contents
MTG2	MTG2 gauge, 5 MHz ¼” right-angle dual element transducer, ultrasonic couplant, carry pouch, screen protector, wrist strap, 2 × AA, instructions, test certificate and 2-year warranty extension card.
MTG4	MTG4 gauge, 5 MHz ¼” dual element transducer reference TXC5M00CP-4 (MTG4-TXC only), couplant, pouch, screen protector, wrist strap, 2 × AA, instructions, test certificate and 2-year warranty extension card.
MTG6	MTG6 gauge, 5 MHz ¼” dual element transducer reference TXC5M00CP-4 (MTG6DL-TXC only), couplant, hard carry case, 3 × screen protectors, wrist strap, 2 × AA, instructions, calibration certificate, ElcoMaster® CD and USB cable.
MTG8	MTG8 gauge, 5 MHz ¼” dual element transducer (MTG8BDL-TXC only), couplant, hard carry case, 3 × screen protectors, wrist strap, 2 × AA, instructions, calibration certificate, ElcoMaster® CD and USB cable.

Features — Model Comparison

Feature	MTG2	MTG4	MTG6	MTG8
¹ Requires Internet connection. ² Standard 1-year warranty, free extension to 2 years within 60 days of purchase. ³ Default scan mode: 16 Hz. ⁴ Material and transducer dependent.
Easy-to-use multilingual menu structure	✓	✓	✓	✓
Tough, impact, water and dust resistant (IP64 equivalent)	✓	✓	✓	✓
Bright colour display with permanent backlight	✓	✓	✓	✓
Ambient light sensor with adjustable brightness	✓	✓	✓	✓
2.4" (6 cm) scratch/solvent-resistant TFT display	✓	✓	✓	✓
Large tactile buttons with positive feedback	✓	✓	✓	✓
USB power (via PC)	✓	✓	✓	✓
Software updates¹ via ElcoMaster®	✓	✓	✓	✓
2-year gauge warranty²	✓	✓	✓	✓
Limits: up to 40 audible/visual pass/fail warnings	—	—	—	✓
Measurement Modes
Pulse Echo (PE)	✓	✓	✓	✓
Echo Echo ThruPaint™ (EE)	—	✓	✓	✓
Velocity Mode (VM)	—	—	✓	✓
Measurement Rate
Readings per second	4 Hz	4 Hz	4, 8, 16 Hz³	4, 8, 16 Hz³
Thickness Range⁴
PE 0.63–500 mm (0.025–19.999")	✓	✓	✓	✓
EE 2.54–25.4 mm (0.100–1.0")	—	✓	✓	—
Units & Indicators
Units: mm or inches	✓	✓	✓	✓
m/s, in/μs	—	—	✓	✓
Repeatability / stability indicator	✓	✓	✓	✓
Display Modes
Reading	✓	✓	✓	✓
Selected statistics	—	—	✓	✓
Scan bar graph	—	—	✓	✓
Run Chart	—	—	✓	✓
Readings & Differential	—	—	—	✓
B-Scan (cross-sectional view)	—	—	—	✓
Selectable Resolution
Low: 0.1 mm; 0.01"; 10 m/s; 0.001 in/μs	✓	✓	✓	✓
High: 0.01 mm; 0.001"; 1 m/s; 0.0001 in/μs	—	—	✓	✓
Statistics
n, mean x̄, standard deviation σ	—	—	✓	✓
Minimum (Lo) / Maximum (Hi)	—	—	✓	✓
Low/High limit value	—	—	—	✓
Reading range / Nominal value	—	—	—	✓
# of readings below low limit / above high limit	—	—	—	✓
Calibration Options
Zero (integral zero disc)	✓	✓	✓	✓
1-Point	—	✓	✓	✓
2-Point	—	—	✓	✓
39 preset materials / Factory reset	—	✓ / ✓	✓ / ✓	✓ / ✓
Velocity mode / Known thickness	—	—	✓ / ✓	✓ / ✓
Calibration Features
Calibration lock (optional PIN) / Calibration test	—	—	✓ / ✓	✓ / ✓
Calibration memories (3 programmable) / Out-of-cal warning	—	—	— / —	✓ / ✓
Data Logging
Number of readings / Number of batches	— / —	— / —	1,500 / 1	100,000 / 1,000
Sequential batches / Grid batches / Fixed batch size with linking	— / — / —	— / — / —	✓ / — / —	✓ / ✓ / ✓
“obst” entry / Delete last reading	— / —	— / —	— / ✓	✓ / ✓
Date/time stamp / Review–clear–delete batches / Alphanumeric names / Review graph	— / — / — / —	— / — / — / —	✓ / ✓ / — / —	✓ / ✓ / ✓ / ✓
Data Output & Transducer
USB to PC / Bluetooth® to PC, Android™, iOS / ElcoMaster® software	✓ / — / —	✓ / — / —	✓ / ✓ / ✓	✓ / ✓ / ✓
Dual element transducer / Auto recognition / V-path correction	✓ / ✓ / ✓	✓ / ✓ / ✓	✓ / ✓ / ✓	✓ / ✓ / ✓

Connectivity & Software

Compatible with ElcoMaster® (PC and iOS/Android App). Transfer readings via USB or Bluetooth®, analyse statistics, and generate professional reports for easy sharing with teams and clients.

Packing List