Professional Diamond Gem Tester Pen Portable Gemstone Gem Jewelry Selector High Accurate Reliable Jewelry Watcher Indicator Tool

Battery Included : No High-concerned chemical : None Model Number : Diamond Tester Display Type : DIGITAL Brand Name : Gaqqee Origin : Mainland China Certification : CE Battery : DC 9V Material : Metal and Plastic Testing Capability 1 : Diamond Testing Capability 2 : Diamond Simulation Testing Capability 3 : Metal Initial Warmup : About 20 seconds indicator : LED Color : Black Size : 160*40*22mm Portable size