Features: 1. This Diamond Tester Pen can select the moissanite from the real diamond. 2. Non-destructive testing, do not hurt your item. It will automatically alarm if the battery is too low. 3. Portable size, convenient for carrying. 4. Easy to operate and accurate test. Specification: Material: Plastic Color: Shown As Pictures Size: Approx. 2.2 * 4 * 16cm / 0.87 * 1.57 * 6.3inch Weight: 156g Battery: 9V (Not Included) Type: Jewelry Tools Package List: 1 * Moissan Tester 1 * Tray 1 * Manual (Chinese English Indian Japanese) Note: 1. The items you test shoudler be clean, dry, and at room temperature. Or it will cause false detection. 2. The probe is very sensitive and should be protected with a cover when not in use. 3. Low power should be replaced in time. 4. Remove the battery if it is not used for a long time.

Accurate?Easy to Store?: This jewelry gem tester has a compact design, size is about 6.3 x 1.57 x 0.83 inch, comes with a PU storage case, you can store the diamond selector for storing or transporting. ?Wide Use?: Equipped with small testing platform for holding loose stones, moissanite tester is widely used for industrial purposes, medical science, Coins and stamps, geography, circuit board and printing industry. ?Low Battery Alarm?: Non-destructive testing, simple and accurate operation, low power consumption, do not hurt your item. It will automatically alarm if the battery is too low. ?Fast Diamond Testing?: LED light and audio result indication, jeweler diamond tester pen is designed for quick, precise, and safe diamond testing, ideal for buying jewelry, trading diamonds, selling real estate, auctions, etc. ?Simple to Operate?: As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained, diamond tester is powered by 9V battery (Not Included), easy to use.

Item Dimensions LxWxH: 6.3 x 1.57 x 0.87 inches. Item Weight: 100 Grams. Power Source: Powersource. Brand: Ejoyous. Best Sellers Rank: See Top 100 in Arts, Crafts & Sewing. : B09C89PHPM. Manufacturer: Ejoyous. Date First Available: August 10, 2021. Item model number: Ejoyousyau98gozhv1384. Product Dimensions: 6.3 x 1.57 x 0.87 inches; 3.53 Ounces.