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M24 Electronic Gold Tester

2.00 LBS
  • Product Description

    The  M24 Professional Electronic Gold Tester from Mizar is one of the most advanced in the world.  It precisely determines gold Karat values equal to or greater than 9K, 10K, 12K,  14K, 16K, 18K, 20K, 22K, and 24K in Yellow, White, Red, and Green gold.

    It is easy to use, with results in as little as 2 seconds, operates on an included 9 Volt alkaline battery, and comes with a two year warranty.

    How does the M24 work?     

    bullet To use the tester, first clean a testing point of the item with the included Gray Eraser to remove any oxidation.
    bullet Attach the Alligator clip to a different area of the Test Gold.
    bullet Press either the Test Yellow Gold or the Test White Gold button to match the type of gold that you are testing - a Karat value lights up.
    bullet Within 2 seconds, add 3 drops of Test Solution into the Test Well at the lower right corner of the instrument (where the ring is located in the photo).
    bullet After the Karat value light goes out (within 1 second), immerse enough of the Test Gold into the liquid to start the "Testing" light.
    bullet Hold the Test Gold in the immersion liquid until the Testing light goes off, about 2 to 15 seconds, depending on the Karat value of the Test Gold.
    bullet Read the LED display that lights up to discover the Karat value of your item. 

    Other Features:     

    bullet Non-destructive testing - no fire assay method needed
    bullet Distinguishes Gold Wash and Flash from Solid Gold
    bullet Can distinguish non-Gold and Gold Plate from Solid Gold
    bullet Tests and identifies Platinum - indicated when carat value is 22K or higher, and gold color is white, not yellow

    Components of Test Kit:     

    bullet M24 Electronic Gold Tester
    bullet Wire Jumper with Alligator Clip
    bullet Testing Solution (No. 1995)
    bullet Gray Eraser
    bullet Eraser Pencil
    bullet Cleaning swabs
    bullet Carrying box


    Testing Range 9, 10, 12, 14, 16, 18, 20, 22, and 24k; NOT GOLD, PLATINUM
    Gold Colors tested Yellow, Red, Green, and White gold
    Test Times 2 seconds from 9-14k, 2-25 seconds     from 16-24k
    Delay before test begins 12 seconds
    Display time 12 seconds
    Automatic Shutoff After each test


    By lighting ON the corresponding LED

    Power Required

    One standard 9-volt alkaline battery (included)

    Operating Temperature 65 to 90 deg. F (19 to 32 deg. C)


    8 oz. with battery
    Unit Dimensions 6.3" x 4.0"      x 1.5"
    Warranty Two Years

    Also available: Check out the similar ET18 and M18A9 Electronic Gold Testers, of the same trusted Mizar name, but at more affordable prices for those who don't need every possible karat value tested.

    The M-24 typically ships within 1 business day.

  • Product Reviews


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    1. Fairly accurate for the first (2) times using the same Chemical

      Because I had most of the jewelry that I tested - "hallmarked" with 10 kt or 14 kt etc, it was very close and accurate. I have a hard time believing that after each test, I have to stop and clean the pot out, scrub it down to either get a repeat test or to use it on another quickly switched out ring.

      I also had trouble testing Canadian .9999 gold coins and getting them verified as 24 kt ( usually showed as 22 kt).
      on Jan 12th 2021

    2. Great Tester!

      I purchased this for my wife for Christmas. She just loves it!
      Easy to use with great results.
      on Dec 30th 2016

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  • Other Details

    Karat Value: 9,10,12,14,18,20,22,24
    Test Method: Electronic