

up to 3 mm

A pocket-size thickness gauge. Working with A-scan on the display is implemented
The EM4000 EMA thickness gauge measures thickness of steel pipes, sheet metal, rods, and other products made from steel, aluminum and other metals, with an operating gap between the transducer and metal of up to 3 mm. The gap can consist of dirt, rust, salt deposits, paint, varnish, enamel, plastic or other non-conductive coating.
EM4000 allows measurements without usage of couplant and without surface preparation.
In addition to measuring metal thickness, the EM4000 allows measuring the thickness of non-conductive coating on metal.
Tilt angle makes a minor effect on the device’s readings, in contrast to conventional thickness gauges with piezoelectric transducers that require transducer fixed in a certain position.
The color LED display allows not only displaying thickness values, but also analyzing A-scan
The technology enables thickness measurement with no couplant and preliminary surface cleaning
Connection to a tablet or other Android device allows expanding the EM4000 capabilities to work with B-scans, etc. At your request, EM4000 can equipped with AR glasses for working in hard-to-reach places


A special high-temperature transducer allows inspection of hot objects heated up to 750 °C.
The EM4000 thickness gauge has a color display protected by impact-resistant glass.
The device uses a special data processing algorithm that provides correct thickness measurements in the presence of disturbing factors such as metal anisotropy, usage of several reflectors, exposure to external interference. The algorithm allows reducing the human factor and simplifying the device interface.
Connection to a tablet, smartphone or another Android device allows expanding the EM4000 features: analyzing A-scans, B-scans, working with gates, selecting a thickness measurement mode, signal processing parameters, etc. The EM4000 can be connected to a tablet via Bluetooth.
Technical specifications
The EM4000 thickness gauge
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Range of measured thickness for steel2…80 mm
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Range of measured thickness for steel without gap2…200 mm
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Thickness measurement error 2…25 mm0.08+0.001·Н mm
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Thickness measurement error 25…200 mm0.1+0.005·Н mm
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Permissible gap between the transducer and the test objectUp to 3 mm
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Range of measured thicknesses for non-conductive coatings0…4 mm
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Measurement error for non-conductive coating thickness0.1 mm ±3%
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Permissible transducer tilt relative to the normal to the test object surface±25 °
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Lowest permissible radius of curvature of the test object surface≥10 mm
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Highest number of measurements per second4
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Range of sound velocity setting1000…9999 m/s with 1 m/s step
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Operating frequency of the device4 MHz
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Duration of continuous work without battery recharge7 hours
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Range of operating ambient temperature-20…+50 °С
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Range of operating temperature on the test object surface-20…+80 °C
(-20…+750 °C where the EMT40004Т transducer is used)
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Dimensions185 x 43 x 35 mm
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