Professional Diamond Tester Rechargeable,High Accuracy Jewelry Diamond Tester Pen,Electronic Diamond Gem Tester and Tester Pen-Professional Diamond Selector for Novice and Expert

Accuracy and portability are what we pursue all the time, we've been working on it to becoming your precision stewards.

Diamond Tester Pen is a must have tool when you are going to a garage sale, flea market, swap meet, etc. Alternatively, its also a great tool to have when testing your own jewelry.

Do you like jewelry very much? But you are worried about how to identify the authenticity of jewelry.Hqdz-td Diamond tester is an electronic instrument designed and manufactured according to the thermal conductivity of diamonds to identify the true and false diamonds. It can also be used for testing sapphire, ruby, crystal, agate and other stones.

Simple to Use
The preheating time is 1 minute.
When the instrument is turned on, it will automatically shut down without working for 3 minutes.
Diamond Tester Pen Test result analysis
If lights >= 9 and have sounds, it is true diamond.
If lights If lights is 7 or 8, it is true crystal.
If lights is 6 or 7, it is true jade.
Don't test metal，Don't wear gloves.
Operating temperature in the range of 10-35 degrees Celsius
Don't wear gloves
Don't detect metal
Tested under windless conditions
Keep humidity below 80%
The metal panel must be touched when testing diamonds
The tip is placed vertically and gently on the test stone.
Power off after testing
Low voltage rechargeable, safe, reliable and durable.
No need for other batteries

Popular among professionals, hobbyists, coin enthusiasts, and business owners alike. Excellent tools. Excellent Value. Great gift idea.