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Extech CG304 Coating Thickness Tester with Bluetooth

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  • Dual Technology provides automatic recognition of ferrous and non-ferrous substrates
  • Magnetic induction for ferrous substrates
  • Eddy-current measurement for non-ferrous substrate

rrp £273.17

now £217.00 (Ex. VAT) £260.40 (Inc. VAT)

rrp £273.17

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  • Description

    Extech CG304 Coating Thickness Tester with Bluetooth

    Extech’s CG304 offers a non-destructive way of measuring the thickness of ferrous and non-ferrous substrates with auto recognition of the material being measured. Unique Bluetooth® interface feature wirelessly transmits measurement data to your PC for further analysis and to generate a documented report.

    Extech CG304 Key Features

    • Dual Technology provides automatic recognition of ferrous and non-ferrous substrates
    • Magnetic induction for ferrous substrates
    • Eddy current measurement for non-ferrous substrates
    • Easy-to use menu system
    • Dot matrix LCD display with backlight and contrast
    • Memory stores 2500 readings in 50 groups with 50 readings in each group
    • Zero-point calibration function
    • Bluetooth interface includes software
    • Complete with two AAA batteries, software, hard case, Steel and Aluminum substrates, and standard fi lms for calibration
  • Specification

    Working Principle  Magnetic Induction Eddy Current 
    Measuring Range

    0 to 2000μm

    0 to 78.7mils 

     0 to 2000μm

    0 to 78.7mils



    ±3.5% (1000 to 2000μm)

    ±(2%+2 μm)

    ±3.5% (1000 to 2000)

    Resolution  0.1μm (0.01mils)  0.1μm (0.01mils)
    MInimum Curvature Radius  1.5mm (59.06mils)  3mm (118.1mils)
    Minimum Diameter  7mm (275.6mils)  5mm (196.9mils)
    Minimum Thickness  0.5mm (19.69mils)   0.3mm (11.81mils)
    Dimenions/Weight  4.7 x 2.4 x 1.25" (120 x 62 x 32mm)/6.17oz (175g)
  • Product Documents

    Product Attachments

    View FileExtech CG304 Datasheet    Size: (105.97 KB)
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  • Delivery Information

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    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
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    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK:

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