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Internet # 312431999

Model # R7800

Store SKU # 1005136818

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Product Details

About This Product

This coating thickness gauge is designed for noninvasive coating thickness measurements. The R7800 features zero or two point calibration, user adjustable high/low alarms and a USB interface to further analyse results in the included software. Automatically identifies ferrous and non-ferrous substrates.


  • Automatically detects ferrous and non-ferrous substrates
  • Easy-to-read color LCD display
  • 360 screen rotation allows users to view measured readings from any angle
  • Tri-color LEDs quickly indicate when measurements are below (red), above (yellow) or within set parameters (green)
  • Zero and two-point calibration ensures measurement accuracy
  • Single or multi-point mode allows a user to set tolerances and quickly identify whether a coating passes or fails
  • Internal memory stores up to 500 groups of data
  • View stored data, charts or real-time measurement with software
  • Low battery indication and auto shut off
  • Includes: coating thickness gauge, ferrous substrate, non-ferrous substrate, 5 reference films, USB cable, wrist strap, sensor cover, batteries, hard carrying case
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Product Information

Internet # 312431999

Model # R7800

Store SKU # 1005136818


Dimensions: H 5.9 in, W 1.38 in, L 2.6 in


Product Height (in.)

5.9 in

Product Length (in.)

2.6 in

Product Width (in.)

1.38 in


Advanced Sensor Options


Combustible Sensor Options



Commercial, Residential

Gas Detector Type


Instrument Type

Diffusion w/ Color Display

Number of Sensors



Black Carrying Case

Product Weight (lb.)

.5 lb

Rechargable Battery Pack and Power Supply


Replaceable Battery




Sample Probe Options (ft.)


Sampling Line Options (ft.)


Tools Product Type

Test Meter

Toxic Sensor 3 Options


Toxic Sensor Options


Warranty / Certifications

Manufacturer Warranty

1 Year

Questions & Answers

Q:What is the max dry film thickness this will measure? I need to have it read up to or over 110 DFT
by|Apr 3, 2023
1 Answer
Answer This Question

A:  Hello Drones, please note that the REED R7800 can measure ranges of 0 to 1250μm or 0.1 to 49.2mils, and it should work on dry film coatings within that range as long as there is a metallic substrate underneath.

by|Apr 4, 2023
    Q:Will this device measure anodic coating?
    by|Jul 27, 2022
    1 Answer
    Answer This Question

    A:  Hello, the R7800 can measure anodic coating as it conforms to the eddy current method of measuring non-conductive coatings on non-ferrous substrates. Thank you

    by|Jul 28, 2022
      Q:What are the height, width, length dimensions of the sensor? (The part of the device that touches the material being tested)
      by|Jun 20, 2022
      1 Answer
      Answer This Question

      A:  Hello, the sensor diameter is approx. 0.4'' 1(1cm) and the height is approx. 0.2'' (0.5cm). Thank you

      by|Jun 20, 2022
        Q:Will this measure mill thickness on drywall?
        by|Apr 14, 2022
        1 Answer
        Answer This Question

        A:  Hello, The R7800 will not measure mill thickness on drywall as it is intended for use on ferrous and non ferrous substrates.

        by|Apr 15, 2022
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          Customer Reviews

          3 out of 5

          • 3 out of 1 reviews
          • 0% recommend this product
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          I don't know if there was something missing from the...
          I don't know if there was something missing from the unit I received, however, I ended not using the instrument because the part that would touch the car's paint was most likely bare metal (or other very hard material that looks and feels like chrome or metal with glossy finish), not cushioned by any soft material that would protect the paint from scratches. If there was nothing missing, it is a design flaw that makes the instrument problematic when used on cars with visually perfect paint. Input from the manufacturer would facilitate future buyers and The Home Depot, by saving them time, money and energy from dealing with unnecessary returns.
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          1 found this review helpful
          Showing 1-1 of 1 reviews