Diamond Tester Pen Portable Electronic Gemstone & Jewellery Tester - High Accuracy Multi Gemstone & Precious Stones Hardness Test Tool

Accurate Stone Identification: Quickly distinguish diamonds and moissanite from fake stones with this tester, ensuring accurate and reliable results. User-Friendly Operation: No need to adjust LED bar graphs like other models; this tester simplifies the process. It can identify stones as small as 2pt and features a low battery detector for convenience. Versatile Power Options: Use AAA alkaline batteries, NiMH batteries, or an AC power adaptor (not included) to power the tester, providing flexibility and convenience. Efficient and Reliable Design: Equipped with an elastic probe tip, built-in metal detector, and an audible "beep" sound indicator, this tester guarantees efficient and precise stone identification. The rubber paint finish offers a comfortable grip. Compact and Portable: With a compact size of 173 x 42 x 22mm and a lightweight design (65g without batteries), this tester is easy to carry and use anywhere.