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Home ProductsUltrasonic Thickness Tester

Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660

Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660

    • Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660
    • Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660
    • Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660
  • Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660

    Product Details:

    Place of Origin: China
    Brand Name: Mitech
    Certification: CE GOST ISO
    Model Number: MT660

    Payment & Shipping Terms:

    Minimum Order Quantity: 1
    Price: 0-500USD
    Packaging Details: cartonbox 32*24*10mm
    Delivery Time: 1-3 days
    Payment Terms: T/T, Western Union
    Supply Ability: 50 sets per day
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    Detailed Product Description
    Measuring Range: 0.65-600mm(P-E),3-100mm(E-E) Resolution Accuracy: 0.1/0.01/0.001mm
    Communication Storage: USB,Bluetooth Working Time: 30h (default Brightness Setting)
    Main Unit Weight: 317g Total Weight: 1.5KG
    Dimensions: 120mm×67mm×31mm Related Standards: CE

    MITECH MT660 Muti-mode Ultrasonic Thickness Gauge


    MT660 multi-mode ultrasonic thickness gauge is the newest promoted upgraded product by Mitech. It pays more attention to user experience and functional innovation. 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. It’s 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.

    Technical Parameters

    Technical Specifications

    Technical Parameters


    Measuring Range Support two working modes:Pulse-echo mode,(0.65~600)mm Echo-echo mode, (3~100)mm
    Accuracy ±0.04mm(≤10mm);±0.4%H(>10mm);
    Measurement Frequency Single-point measurements per second 7 times, 16 times a second scan mode.
    Display Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660320x240 TFT color LCD screen, adjustable backlight brightness
    Resolution 0.1mm/0.01mm/0.001mm switchable
    Sound Velocity Range (1000~9999)m/s(it can measure the sound speed of material with known thickness)
    Calibration Zero calibration, two-point calibration, automatic error correction system
    Working Modes Single Point measurement, min/max measurement, differential measurementPortable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660
    Units Metric/Imperial unit selectable
    Working Languages

    Chinese/English selectable




    Memory for up to 100 files (up to 100 values for each file) of stored values
    Communication Interface Support bluetooth and USB2.0 communication, the host program can be updated online.
    Power Source Two “AA” Size, 1.5 volt alkaline batteries,operating time is more than 30 hours (ELbacklight off)
    Data Printing You can use portable bluetooth thermal printer to print measurement reports
    Automatic Power Saving Auto sleep and auto power off function to conserve battery life
    Appearance Properties Material: Aluminum-magnesium Alloy size: 120mm × 67mm × 31mm
    Weight 317g



    • Capable of performing thickness measurements on a wide range of materials including metals (such steel, cast iron, aluminum, copper and so on), plastic, ceramics, composites, epoxies, glass and other ultrasonic well-conductive materials.
    • Sealed metal case delicate design, special designed for defense against bad site environment, it can anti vibration, shock and electromagnetic interference.
    • With HD colorful LCD display and intelligent operation interface, it can display the measurement results intuitively and provide a good display experience to user.
    • With two thickness measurement modes: Pulse- Echo mode and Echo-Echo model, it can measure the thickness through the coating without calculating the coating thickness.
    • With large storage capacity and lower power design, it can standby super long time above months.
    • Attach with USB data proceeding software, it can connect with PC for data’s analysis, storage and printing.
    • Capable for compatible with a variety of probes with different frequency and size.
    • With high accuracy and high resolution display, it can support 0.001 display resolution.
    • With probe-zero calibration and two point calibration functions, it can correct the system error automatically.
    • Equipped with narrow impulse composite crystal high accuracy probe, it has small dead zone and accurate measurement.
    • With high brightness EL backlight display, it is convenient for using in dim light environment.
    • Support communication with Bluetooth printer on site, more conveniently for use.
    • Auto alarm when exceeding the measuring range.
    • With auto sleep, auto shutdown and other power saving functions as well as battery rest capacity indicating function.

    Working Principle

    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.

    Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660


    H-Thickness of the test piece.

    v-Sound Velocity in the material.

    t-The measured round-trip transit time.


    To make sure the probe working properly, it needs to use couplant to isolate the air between the probe surface and the measured workpiece surface. The liquid used for the coupling between the probe and workpiece is called as couplant.












    Transducer Selection

    Model Freq Diam Measuring Range Lower limit Description
    N05 5MHz 10mm 1.0mm~600mm (in steel) Φ20mm×3.0mm Normal measurement
    N05/90° 5MHz 10mm 1.0mm~600mm (in steel) Φ20mm×3.0mm Normal measurement
    N07 7MHz 6mm 1.0mm~600mm (in steel) Φ15mm×2.0mm For thin pipe wall or small curvature pipe wall measurement
    HT5 5MHz 12mm 1.0mm~600mm (in steel) 30mm For high temperature (lower than 300℃) measurement
    N02 2.5MHz 14mm 1.0mm~600mm (in steel) 20mm For thick, highly attenuating, or highly scattering materials
    P5EE 5MHz 10mm

    Pulse-Echo:2.0mm-600mm (in steel)

    Echo-Echo: 3.0mm-100mm (in steel)

    Φ20mm×3.0mm Trough-coating thickness testing










      No. Type QTY Remarks



    1 Main body 1  
    2 Probe P5EE(5MHz) 1  
    3 Probe N07(7MHz) 1  
    4 Couplant 1  
    5 Instrument case 1  
    6 Operating manual 1  
    7 Alkaline battery 2  
    8 USB cable 1  
    9 Datapro software 1  



    1 Probe N05 (5MHz)    
    2 Probe HT5(5MHz)    
    3 Probe N02(2.5MHZ)    
    4 High temperature couplant    


    Contact Details
    Mitech CO.,LTD.

    Contact Person: Ms. Lareina Lee

    Tel: 86-10-5885-8658

    Fax: 86-10-5885-0828

    Send your inquiry directly to us (0 / 3000)