Auracle ANALYZER and PRO Compared - which is best?

Last updated: September 30, 2026

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P5 WHICH TESTER IS BEST FOR YOU?
ANALYZER OR PRO? - by user type
COMPARISON: TECHNICAL SPECIFICATIONS AND TEST-RESULTS
ANALYZER OR PRO? - do they test for everything?
FURTHER INFORMATION

P5 WHICH TESTER IS BEST FOR YOU?

If you are ready to buy now and just need to see the product pages, see the Auracle ANALYZER or the Auracle PRO.

ANALYZER OR PRO? - by user type

The Auracle ANALYZER is best if:

You are a hobbyist or collector checking items that are unlikely to be gold, but you want to be sure; you are an antiques/second-hand dealer who needs to check every purchase to see which items might be gold; you deal in costume jewellery and need to catch the occasional gold item that slips through. In all these cases you just need something simple that will reliably show you the carat.

Either model is suitable if:

You do deal in "real" jewellery, though that's not your main business, and you usually stick to hallmarked items just to be on the safe side. But now that the price of gold is so high you don't want to turn down non-hallmarked items. The ANALYZER will be quite sufficient but if you can afford it, go for the PRO.

The Auracle PRO is best if:

You are a scrap dealer. When you buy you test for carat (9, 14, 18, 22) and that's good enough, but when you send it to be melted you might want to know the percentage of gold in each batch, then you can calculate the percentage you are being paid relative to the official gold price on the day of melt. That way, you can keep an eye on your profit, and you can also check the accuracy of your testing (If you don't understand any of that - go for the ANALYZER!). Basically: the PRO is the most versatile in terms of features.

COMPARISON: TECHNICAL SPECIFICATIONS AND TEST-RESULTS

Feature	Auracle ANALYZER	Auracle PRO
Appearance	Basic	Slick
Displays	LED lights for Carat Small LCD display for instructions	One large LCD display tells you everything
Readout	Carat	Standard mode: carat Enhanced mode: percentage
Range	NA (not gold), 8ct to 24ct platinum	In standard mode: Not Gold, then 8ct to 24ct (or platinum) In Enhanced mode: = 0% to 100%
Accuracy / Test results	The percentage 'Accuracy' of the carat readings, on both the ANALYZER and PRO, will be the same as listed to the right, but 'carat' measurements are very 'approximate' and so the error is minimal under about 20ct. Of the last 268 readings: 9ct: the marking on the scale reads "10K" because it's American, all readings were correct (between NA and 10K) 14ct: all 268 readings were correct 18ct: of the 268 readings, 265 were correct, 3 read 22ct. 22ct: of the 268 readings, 230 were correct, 38 read 18ct.	In Enhanced Mode (percentage readings): 37.5% (9ct) ACCURACY, ±1.5% Lowest reading was 1.5% too low, highest reading was 1.5% too high. 58.5% (14ct) ACCURACY ±1.5% (lowest reading was 2.5% too low, highest reading was 0.5% too high). 75.0% (18ct) ACCURACY ±5% (lowest reading was 3% too low, highest reading was 7% too high). 91.6% (22ct) ACCURACY ±8% (lowest reading was 12.4% too low, highest reading was 3.4% too high).
Power	Battery & Mains	Battery & Mains
Battery Warning	"Low Batt" Text	Percentage remaining
Calibration	One 18ct sample	One 18ct sample
Processor	Same as the famous KEE tester, simple but reliable	Specialized PRO processor
Pen-Probe Life	Up to 5,000 tests	Up to 5,000 tests

NOTES
These testers are American, they say 'Karat' (K), we say "Carat" (ct), they are the same; their standard starts at 8ct not 9ct, so when you see an 8ct reading, the item is 9ct.
"The display reads the nearest 0.1%. This is not the accuracy! Accuracy is not the same as readability'.

ANALYZER OR PRO? - do they test for everything?

Electronic gold testers of this type are for testing jewellery, they might not be suitable (your feedback welcome) for testing powder, granules, nuggets or flecks in quartz.

Also:

Does not test silver (silver reads 'not gold')
Palladium reads as gold (usually about 14ct, it varies)
White gold: when the alloy has nickel added to the gold you get a reading that is too low; or with a high silver content you get a reading that is too high.

For these, get yourself the special set of acids designed for use with electronic testers, the Q3-FOR-EGT. Acids also give the most accurate readings on high carat gold (e.g. if you need to distinguish between 20ct and 22ct, or between 21ct and 24ct.).

FURTHER INFORMATION

Not sure what type of tester to get? See our fascinating article, Twelve methods of testing gold, silver and platinum.
For small very fragile/valuable items such as rare coins (and also loose gemstones) see the specific gravity tester.
Finally, do remember that acids are the most versatile and accurate for testing precious metals, see What the various testing kits do and Testing white metals.
You need to test high-carat and white gold more accurately, you need to test platinum, Palladium and steel - see our special Q3 for use with electronic gold testers. Please note, this is only available for sale with electronic gold testers.