Black Diamond Tester Pen Diamond Detector with LED Indicator Keyboards & Mice Lightweight and ca be folded

Lightweight and ca be folded freely

Length:74cm

There are no tools or wiring required

mobile phone cases

Supports 45-degree Celsius constant temperature heating

Black Diamond Tester Pen Diamond Detector with LED Indicator Keyboards & Mice Lightweight and ca be foldedType: Diamond Tester, Diamond Test Pen, Diamond Selector, Gem Tester, Diamond Selector Pen, Jewelry Test Tool, Precious Stones Hardness Test Tool Description: Designed for fast, accurate and safe diamond detection. Features: The tester is lightweight and compact, with a PU bag, easy to carry. Non destructive testing, do not hurt your diamond. LED light and audio result display, make it easy to read your precise testing results. Easy to operate, just