KEE ELECTRONIC GOLD TESTER M509-GM - TT64

KEE ELECTRONIC GOLD TESTER M509-GM.

DETAIL

As with all electronic testers it is most accurate for testing low-carat gold, you will need a sample of 18ct to calibrate (match up the electronics with "carat") it - available as an optional extra if you don't already have an item of hallmarked 18ct. Using an 18ct sample for calibration gives the most accurate results on 9ct to about 20ct.

The KEE is also good for testing high-carat gold: with careful calibration using both an 18ct and 22ct sample you will be able to test 20ct to 24ct accurately. That is better than any other electronic gold tester we have evaluated.

If you are only interested in getting an accurate reading up to 18ct, there is no need to bother calibrating the KEE with a 22ct sample.

Every electronic tester, including XRF* testers (£12,000.00 to £40,000.00) only tests the surface – the KEE is no exception: you must file the surface with a fine needle-file (supplied) to remove any plating. You do this in a place where it won't show. If you are not prepared to do this, you cannot test it.
* Some XRF testers can test through very thin plating.

FEATURES

• tests gold from 8ct to 24ct (the scale is marked "K" instead of "ct" because it's American)
• simple analogue meter, good reliability
• simply touch pen-probe to the item, result is shown in 2 or 3 seconds, very fast
• easy calibration with a sample of 18ct (+ a sample of 22ct gold if you want to test 20ct to 24ct accurately)
• powered by one AA battery, supplied (will last many months providing you remember to turn it off after use)
• includes extra contact leads for large items that will not fit on the test-plate (though if you're only testing jewellery, it's unlikely you will find an item that won't fit on the test-plate)
• the pen-probe lasts for "up to a few thousand tests" according to the manufacturer. A survey of our customers shows that with regular use in a shop a pen-probe generally lasts from 3 to 18 months (the longest reported time was 2 years and the shortest 6 weeks). A probe is guaranteed for one month from the date of purchase.