Specifications: Material: diamond tester: plastic; magnifying glass: zinc alloy Color: diamond tester: black; magnifying glass: silver Size(about): diamond tester:160x41x22mm/6.3x1.6x0.9inch(LxWxH); magnifying glass:Effective diameter:21mm/0.8 inch; 60x25x18mm/2.4x1x0.7inch(LxWxH)(unfolded), 42x25x18mm/1.7x1x0.7inch(LxWxH)(folded) Diamond tester:power by battery( included) Operation method: 1. turn on the power, the power indicator light, the instrument begins to warm up, a few seconds later the instrument can be used. 2. Put the bare drill under test into the appropriate concave hole of the supporting tray, and put its mesa upward. The inlaid need not be placed in the tray hole, but can be held by hand. 3. according to the weight of the measured true and false diamond and the temperature of the location of the light emitting diode. 4. Remove the probe sheath, hold the instrument and touch the conductive plate on the back cover of the instrument with your right index finger; Gently contact the probe vertically with the surface of the real or fake diamond to be tested. Repair and maintenance: 1. The probe of the instrument is very sensitive and must be protected with special care. It should be covered with a sheath when not in use. 2. when the preparation indicator light is very dark, it means that the battery will be exhausted, and the battery should be replaced in time. 3. If the instrument is not used for a long time, please remove the battery. 4. In order to detect accurately, it is recommended to calibrate once a year. Package Included: 1pc x diamond tester 1pc x 30 times diamond magnifying glass 1pc x 9V battery 1pc x test platform 1pc x holster 1pc x instruction 1pc x storage box

?Package Included?: 1pc x diamond tester/ 1pc x 30 times diamond magnifying glass/ 1pc x 9V battery/ 1pc x test platform/ 1pc x holster/ 1pc x instruction/ 1pc x storage box. ?COVENIENT?Jewelry diamond testers is simple to operate to get results, professional are not required. Simply turn on our Diamond Tester Pen detector; place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient). ?WIDLY USE?This eye loupe is great for rock collectors, coin collectors, jewelers, hobbyists, industrial purpose, and also makes a great gift for the kids to explore the fabulous tiny world. ?Stable? The loupe Magnifier use optical magnifying glass lens and full metal shell, which can make this magnifying lens and light more sturdy, compact and useful. ?TESTING DIAMOND?Diamond teater can help you to distinguish whether your diamond is real or fake,which is a matching instrument with the Diamond. It is only used for the distinction of diamond.

Item Dimensions LxWxH: 7.28 x 3.74 x 0.59 inches. Lens Material: Glass. Item Weight: 0.2 Kilograms. Color: Black. Brand: Ompait. Included Components: Not null. Batteries required: Yes. Best Sellers Rank: #56,470 in Arts, Crafts & Sewing. Customer Reviews: 2.7 out of 5 stars 4 ratings 2.7 out of 5 stars. : B09PYVPB6Y. Manufacturer: ompait. Item Weight: 7 ounces. Product Dimensions: 7.28 x 3.74 x 0.59 inches.