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Reed Instruments R7900 Ultrasonic Thickness Gauge with NIST

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Precision Non-Destructive Testing with Certified NIST Accuracy

The Reed Instruments R7900-NIST is a high-performance ultrasonic thickness gauge designed to measure the wall thickness of various materials from 0.03 to 15.7" (0.75 to 400mm) without damaging the surface. Ideal for industrial applications requiring strict compliance, this model includes a Traceable Calibration Certificate to satisfy safety audits and quality assurance protocols.

Key Technical Advantages

  • Versatile Material Measurement: Accurately measure steel, cast iron, glass, and plastics using the adjustable sound velocity range (1000 to 9999m/s).

  • Advanced Data Management: Store up to 500 readings in the internal memory, allowing for extensive field inspections without stopping to record data manually.

  • Intelligent Display: The backlit LCD ensures clear readings in low-light environments, displaying results in both inches and millimeters.

  • Durable & Reliable: Built to withstand industrial environments, featuring a 5MHz transducer and a fast-response standard mode for efficient workflow.

Ideal Applications for the REED R7900

  • Corrosion Monitoring: Regularly check the wall thickness of pipes, boilers, and pressure vessels to identify thinning and prevent leaks.

  • Manufacturing Quality Control: Verify that parts meet engineered thickness specifications in industries like automotive and aerospace.

  • Shipbuilding and Marine Inspection: Measure hull thickness and structural integrity without dry-docking or destructive sampling.

  • Storage Tank Maintenance: Assess the integrity of fuel and chemical storage tanks to ensure compliance with environmental and safety regulations.

  • Infrastructure Safety: Test the thickness of structural steel in bridges and commercial buildings to monitor for long-term wear or environmental degradation.

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)

 

Video

Reliable Material Inspection with the Reed R7900 Ultrasonic Gauge

Discover the power of non-destructive testing with the Reed Instruments R7900. This ultrasonic thickness gauge is built for precision, capable of measuring through a wide variety of materials up to 15.7" (400mm).8 Whether you are inspecting pipelines, storage tanks, or manufacturing components, the R7900 provides fast, digital accuracy you can trust.

Engineered for Professional Efficiency:

  • Instant Digital Feedback: Features a clear, backlit LCD display that provides measurements in inches or millimeters at the touch of a button.

  • Massive Data Storage: Don't worry about taking notes in the field; the R7900 stores up to 500 readings internally for later review.

  • Ready for Any Material: With adjustable sound velocity, you can quickly switch between measuring metals, plastics, and glass.

  • Professional Kit: Each unit comes complete with a 5MHz transducer, couplant gel, batteries, and a rugged hard carrying case for ultimate field protection.

Included
  • Ultrasonic Thickness Gauge
  • Traceable Calibration Certificate with full Data and Uncertainties
  • Ultrasonic Couplant Gel
  • Probe
  • Hard Carrying Case
  • Batteries
Resources

Datasheet for the REED R7900-NIST Ultrasonic Thickness Gauge, 15.7" (400mm),

Manual for the REED R7900-NIST Ultrasonic Thickness Gauge, 15.7" (400mm),

Description

Precision Non-Destructive Testing with Certified NIST Accuracy

The Reed Instruments R7900-NIST is a high-performance ultrasonic thickness gauge designed to measure the wall thickness of various materials from 0.03 to 15.7" (0.75 to 400mm) without damaging the surface. Ideal for industrial applications requiring strict compliance, this model includes a Traceable Calibration Certificate to satisfy safety audits and quality assurance protocols.

Key Technical Advantages

  • Versatile Material Measurement: Accurately measure steel, cast iron, glass, and plastics using the adjustable sound velocity range (1000 to 9999m/s).

  • Advanced Data Management: Store up to 500 readings in the internal memory, allowing for extensive field inspections without stopping to record data manually.

  • Intelligent Display: The backlit LCD ensures clear readings in low-light environments, displaying results in both inches and millimeters.

  • Durable & Reliable: Built to withstand industrial environments, featuring a 5MHz transducer and a fast-response standard mode for efficient workflow.

Ideal Applications for the REED R7900

  • Corrosion Monitoring: Regularly check the wall thickness of pipes, boilers, and pressure vessels to identify thinning and prevent leaks.

  • Manufacturing Quality Control: Verify that parts meet engineered thickness specifications in industries like automotive and aerospace.

  • Shipbuilding and Marine Inspection: Measure hull thickness and structural integrity without dry-docking or destructive sampling.

  • Storage Tank Maintenance: Assess the integrity of fuel and chemical storage tanks to ensure compliance with environmental and safety regulations.

  • Infrastructure Safety: Test the thickness of structural steel in bridges and commercial buildings to monitor for long-term wear or environmental degradation.

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)

 

Video

Reliable Material Inspection with the Reed R7900 Ultrasonic Gauge

Discover the power of non-destructive testing with the Reed Instruments R7900. This ultrasonic thickness gauge is built for precision, capable of measuring through a wide variety of materials up to 15.7" (400mm).8 Whether you are inspecting pipelines, storage tanks, or manufacturing components, the R7900 provides fast, digital accuracy you can trust.

Engineered for Professional Efficiency:

  • Instant Digital Feedback: Features a clear, backlit LCD display that provides measurements in inches or millimeters at the touch of a button.

  • Massive Data Storage: Don't worry about taking notes in the field; the R7900 stores up to 500 readings internally for later review.

  • Ready for Any Material: With adjustable sound velocity, you can quickly switch between measuring metals, plastics, and glass.

  • Professional Kit: Each unit comes complete with a 5MHz transducer, couplant gel, batteries, and a rugged hard carrying case for ultimate field protection.

Included
  • Ultrasonic Thickness Gauge
  • Traceable Calibration Certificate with full Data and Uncertainties
  • Ultrasonic Couplant Gel
  • Probe
  • Hard Carrying Case
  • Batteries
Resources

Datasheet for the REED R7900-NIST Ultrasonic Thickness Gauge, 15.7" (400mm),

Manual for the REED R7900-NIST Ultrasonic Thickness Gauge, 15.7" (400mm),

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