{"product_id":"professional-diamond-tester-pen-portable-thermal-conductor-tool-for-authenticity-testing-of-diamonds-jadeite-and-jade-high-accuracy-gemstone-selector-detector-audio-buzzer-indicator-device","title":"Portable Diamond Tester Pen with LED \u0026 Audible Feedback","description":"\u003ch2\u003eClear feedback for careful diamond checks\u003c\/h2\u003e\u003cp\u003eThis handheld diamond tester combines a row of LED indicators with audible feedback during the checking process. A continuous metal-contact alert helps flag accidental contact with the setting or another metal surface rather than the intended stone.\u003c\/p\u003e\u003ch2\u003eA straightforward sequence from warm-up to probe contact\u003c\/h2\u003e\u003cp\u003eInstall one 9V battery, switch the tester on and wait for the ready indication. Position a loose stone in the support tray or hold a mounted stone so the probe can reach it, touch the rear conductive plate, and bring the probe vertically into gentle contact with the stone. The battery is not included. No numeric accuracy specification or broad non-diamond identification method is established here.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLED indication and audible feedback\u003c\/li\u003e\n\u003cli\u003eContinuous metal-contact alert\u003c\/li\u003e\n\u003cli\u003eHandheld probe format\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NexForm","offers":[{"title":"black \/ United States","offer_id":46992790585542,"sku":"1005012172981543-black-United States","price":31.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8083\/3990\/files\/Sef374441acf14f15b3b61801b2d6f75di.webp?v=1788123187","url":"https:\/\/byourielle.com\/products\/professional-diamond-tester-pen-portable-thermal-conductor-tool-for-authenticity-testing-of-diamonds-jadeite-and-jade-high-accuracy-gemstone-selector-detector-audio-buzzer-indicator-device","provider":"byourielle","version":"1.0","type":"link"}