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    Portable Ultrasonic Pipe Thickness Gauge, Through Paint

    5 out of 5 based on 1 reviews | Write a review
    Portable ultrasonic thickness gauge, 1mm~100mm measuring range with standard probe and high resolution 0.01mm or 0.001 inches, material velocity range 1000~9999m/s (0.0394 to 0.3937in/μs), backlit LCD display, high precision and simple to use for the thickness measurement of metal, pipe, steel and other materials, thru-paint ultrasonic thickness tester also available for through coating thickness measurement.
    SKU: ATO-UM-2
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The ultrasonic thickness gauge is portable, durable and high-accuracy ultrasonic thickness measurement device based on pulse-echo or echo-echo principle. This series of ultrasonic thickness gauge can be widely used in the fields such as manufacturing, metal processing, chemistry and business inspecting for measuring the thickness of all sorts of materials where the ultrasonic wave can spread through with a constant speed and get the reflection from the back side.

    The ultrasonic thickness gauge not only can make accurate measurement on various kinds of plates and processing components like metal materials, high temperature pipes, pipes, steel plates, aluminum plates, plastics, iron pipes, PVC pipes, glass, etc., but also test the thickness loss of pipes and pressure containers after corrosion.


    • 0.01mm or 0.001 inches resolution
    • 128*64 pixels display with backlight
    • 500 thickness readings can be stored
    • Hi-Low alarm setting
    • Minimum thickness capture
    • V-sound path correction
    • Bult-in 7 types of transducer compensation line
    • Through paint/coating function (ATO-UM-2D only)


    Handheld Ultrasonic Thickness Gauge Details


    Model ATO-UM-2 ATO-UM-2D
    Display Type 128 ×64 dot-matrix LCD screen with EL backlight
    Operating Principle P-E (pulse-echo) with dual-crystal probe P-E (pulse-echo), E-E (Echo-Echo) with dual-crystal probe
    Total Measuring Range 0.8mm-300mm, depending on material and probe
    Measuring Range in Standard Mode Standard probe PT-08: 0.8mm-100mm
    Measuring Range in Thru Coating Mode N/A 3-20mm with PT-08 probe
    Measuring Limits of Tube (Steel) Φ20mm×3.0mm (PT-08 probe)
    The measuring error is up to ± 0.1mm.
    Measuring Error Lower limit to 10mm: ±0.05mm
    10mm to upper limit: ±(0.5%H+0.01)mm
    Note: H is the actual thickness of the tested material
    Repeatability 0.05mm
    Display Resolution 0.01mm or 0.001 inch
    Units Inch or Millimeter
    Calibration Method Zero calibration, Two-point calibration
    V-Path Correction Automatic
    Update Rate 4Hz
    Material Velocity Range  1000~9999m/s (0.0394 to 0.3937in/μs)
    Memory Function 5 arrays are divided to store 500 thickness values
    Minimum Value Checking Taking the probe to move along the surface of the tested material, the gauge is able to find the thinnest point automatically.
    Warning Function If the measured value exceeds the pre-set thickness limit, the guage will sound an alarm.
    Velocity Storage Can store the velocities of 5 different materials in total
    Languages English and Chinese
    Communication Port (Optional) USB port or Serial RS 232 port
    Application Software (Optional) UmView Software for data transmission, storage, analysis and document editing
    Power Supply Two 1.5V AA alkaline batteries (Alarm for low battery voltage)
    Operating Time Up to 200 hours with alkaline batteries (without backlight)
    Instrument Shut-off AUTO OFF after 5 minutes of no operation
    Operating Temperature -10℃ ~ +50℃
    Size 149mm×73mm×32mm (H×W×D)
    Weight 210g including batteries

    * Standard Packing List

    Ultrasonic Thickness Gauge × 1, Standard Probe × 1, Battery × 2, Couplant × 1, Carrying Case × 1, Operating Manual × 1
    (Kindly Reminder: Battery and Couplant is Not Included if Shipped By Air.)
    ** Optional Probes

    Model PT08 PT06 PT04 ZT12 GT12
    Type Standard Small Tube Fingertipe Cast iron High-Temperature
    Frequency 5MHz 7.5MHz 10MHz 2MHz 5MHz
    Diameter 11mm 8mm 6mm 17mm 15mm
    Measuring Range 0.8~100mm 0.8~30mm 0.7~12mm 4.0~508mm 4.0~80mm
    Allowable Temperature -10℃ ~ 70℃ -10℃ ~ 70℃ -10℃ ~ 70℃ -10℃ ~ 70℃ -20℃ ~ 450℃
    Picture ultrasonic thickness gauge PT08 probe ultrasonic thickness gauge PT06 probe ultrasonic thickness gauge PT04 probe  ultrasonic thickness gauge ZT12 probe ultrasonic thickness gauge GT12 probe

    Function Comparison

    Model ATO-UM-1 ATO-UM-1D ATO-UM-2 ATO-UM-2D
    Operating Principle P-E (pulse-echo) P-E (pulse-echo), E-E (Echo-Echo) P-E (pulse-echo) P-E (pulse-echo), E-E (Echo-Echo)
    Measuring Range in Standard Mode 0.8mm-300mm, depending on material and probe
    Measuring Range in Thru Coating Mode N/A 3-20mm N/A 3-20mm
    Measuring Resolution 0.1mm, 0.001 inch 0.1mm, 0.001 inch 0.01mm, 0.0001 inch 0.01mm, 0.0001 inch
    Probe Compensation Line 1 built-in probe compensation line 1 built-in probe compensation line 7 built-in probe compensation line 7 built-in probe compensation line
    Data Logger Y Y Y Y

    Tips: Calibration of ultrasonic thickness gauge

    Before measuring thickness with ultrasonic thickness gauge, the lower limit and linearity of the instrument should be calibrated. The lower limit of the instrument should be calibrated by a test block whose thickness is the lower limit. If the sound velocity of the material is known, the velocity value of ultrasonic thickness gauge can be adjusted in advance, and then the test block attached to the instrument can be used for the calibration with the "calibration key" button of the gauge. In fact, it is found that the thickness of the calibration block of different brands of UT thickness gauges are different, so we should pay attention to the thickness of the standard calibration block in the field inspection, so as not to adjust the wrong reference values.

    Generally, the calibration test block attached to ultrasound thickness gauge is small. When the required thickness deviates from the attached one larger, the step calibration blocks is needed. The ultrasound thickness gauge shall be calibrated with the thickness close to the maximum thickness to be measured and the minimum thickness to be measured respectively (or half of the maximum thickness to be measured).

    Existing reviews of Portable Ultrasonic Pipe Thickness Gauge, Through Paint
    Ultrasonic Thickness Gauge
    What are the difference between ATO-UM-2 and ATO-UM-2D ultrasonic thickness gauge?
    From: Bruna | Date: 08/09/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The main difference is that the ATO-UM-2D ultrasonic thickness gauge can be used for thru-paint measurement while the ATO-UM-2 can not.
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