Ultrasonic Product

MT660 Multi-mode Ultrasonic Thickness Gauge


MT 660.jpg

MT660 multi-mode ultrasonic thickness gauge adopted with 320*240 colorful LCD display, it can show you clear measurement result under dim light and strong sunshine environment, improved the visual experience greatly. Sealed aluminum-magnesium alloy case delicate design, smaller volume, better quality are specially designed for defense against oil, dust in the bad sit environment. With intelligent warning function, it will promote automatically when beyond the setting range, it is convenient for reading. 

It can meet the efficient collecting material’s multiple points’ thickness accurate testing demand. It supports 0.001 high accuracy display and Bluetooth communication. With through coating mode and common mode, its unique performance of capable for testing thickness through the coating provides efficient solution for testing the workpiece of coated surface or corrosion materials. It can measure the workpiece directly without needing to get rid of the surface coating before measurement. Widely used for monitoring the production equipments’ various pipelines and pressure vessel corrosion reducing degree in the fields of petroleum, chemical, metallurgy, shipbuilding, aviation, aerospace and so on. It also can be used for making accurate measurement to various plates and machining parts. It is the necessary professional precision instrument for improving the production efficiency and qualification rate as well as saving cost.

Capable of performing measurements on a wide range of material, including metals, plastic, ceramics, composites, epoxies, glass and other ultrasonic wave well-conductive materials.Transducer models are available for special application, including for coarse grain material and high temperature applications.

The digital ultrasonic thickness gauge determines the thickness of a part or structure by accurately measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the thickness of the material, reflect from the back or inside surface, and be returned to the transducer. The measured two-way transit time is divided by two to account for the down-and-back travel path, and then multiplied by the velocity of sound in the material. 

The result is expressed in the well-known relationship: H=v×t/2  


H-Thickness of the test piece. 

v-Sound Velocity in the material. 

t-The measured round-trip transit time. 

Operating Temperature: -20℃~+60℃ ;

Storage Temperature:-30℃~+70℃ ;

Relative Humidity ≤90%; 

The surrounding environment should avoid of vibratin, strong magentic field, corrosive medium and heavy dust. 


Multi-mode: Pulse-Echo mode (P-E mode) and Echo-Echo mode (E-E mode). In Echo-Echo mode, it can test the wall thickness eliminating paint or coating thickness.

 Wide measuring range:Pulse-Echo mode: (0.65~600)mm (in Steel). Echo-Echo mode: (2.5~100)mm

V-Path correction to compensate the nonlinearity of the probe

Color TFT display (320×240 TFT LCD) with adjustable backlight, allow the user to work at worksites with low visibility.

Non-volatile memory can store 100 groups of test thickness. One hundred records max for each group.

Two AA size alkaline batteries as the power source. Continuous operating period of no less than 100 hours (default brightness setting). Display Standby and Auto Power Off functions to save power.

With internal Bluetooth module, it can print test report wirelessly.

USB 2.0 communication port. Online transfer of the measured data to PC via USB. 

Measuring Range

0.65-600mm( P-E), 3-100mm (E-E)

Working Frequency


Probe Diameter

Standard Probe P5EE is 10mm, Probe N05 is10MMProbe N07 is 6MMProbe HT5 is12MMProbe N02 is12MM

Min. Pipe Diameter







Color TFT display (320×240 TFT LCD) with adjustable backlight

Single /Scan Mode

Single mode,Scan Mode, and and diff mode

Probe Calibration

Zero calibration, two-point calibration, automatic error correction system

Velocity Range



Metric/Imperial unit selectable




100 groups (100values for each group) of stored values

Communication Port


Data Printing


Power supply

Two “AA” size, 1.5 Volt alkaline batteries

Lower Power Comsumption


Working Hours

30 hour

Operating Temperature


Relative Huminity



Extruded aluminum body



Gross Weight

1.5 KG

PC Datapro Software


Speech Function



E-mail: zhongyi@zhongyi-ndt.com

Tel: +86- 415-6133688

Fax : +86- 415-6133688

Work Time: 9AM--5PM (GMT+8)

Address: No. 5 Tong Xing Rd ,Zhen An Distr.

Dandong, 118011 China

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