• REED R7900 Ultrasonic Thickness Gauge


    Internal memory capable or storing up to 500 readings with user alarm thickness limits.

    REED R7900 Offers

    This ultrasonic thickness gauge has a backlit LCD display and is capable of measuring the thickness of a wide variety of ultrasonic conductive materials. The R7900 features user adjustable high/low alarms and internal memory capable of storing up to 500 measurements.


    • Measures a wide range of material including; metals, plastic, ceramics, composites, epoxies, glass, and other ultrasonic conductive materials
    • Easy-to-read backlit LCD display
    • User selectable unit of measure (in/mm)
    • Internal memory stores up to 500 measurements
    • Displays sound velocity at the touch of a button
    • Zero adjustment button
    • User adjustable High/Low alarms
    • Built-in two-point calibration function
    • Auto sleep, shut off and low battery indicator

    REED R7900 Specifications

    Measuring Range 0.03 to 15.7" (0.65 to 400mm)

    Accuracy ±0.04mm (< 10mm)

    ±(0.1% rdg.+ 0.04mm) (< 100mm)

    ±(0.3% rdg.) (> 100mm)

    Resolution 0.01mm or 0.1mm (< 100mm)

    0.1mm (>100mm)

    Velocity Range 1000 to 9999 m/s (0.039 to 0.394 in/µs)

    Compatible Materials Ultrasonic conductive materials (ie. metals, plastics, ceramics, composites, epoxies, glass)

    Sampling Time Less than 1 sec.

    Display 4-Digit, LCD

    Backlit Display Yes

    Probe Length 3' (36")

    Internal Memory Yes (up to 500 readings, 5 files up to 100 each)

    Low Battery Indicator Yes

    Power Supply 2 AA Batteries

    Battery Life Approx. 100 hours (Alkaline)

    Product Certifications CE

    Operating Temperature 32 to 122°F (0 to 50°C)

    Storage Temperature -4 to 140°F (-20 to 60°C)

    Operating Humidity Range 20 to 80%

    Dimensions 5.9 x 2.9 x 1.3" (150 x 74 x 32mm)

    Weight 8.4oz (238g)

    What's included with the REED R7900

    • Ultrasonic Thickness Gauge
    • Ultrasonic Couplant Gel
    • Probe
    • Hard Carrying Case
    • Batteries

    Ideal Applications for the REED R7900

    • Monitoring and verifying pipes and pressure vessels
    • Industrial manufacturing