HOYON Drilling test pen - diamond tester/Mohs hardness tester/diamond

Model Number : Drill test pen Product Features : Check the authenticity of moissanite/diamond and other gemstones Item Width : 1.5inch Item Length : 6.3inch Material : Plastic Item Height : 0.83inch Item Weight : 0.2kg Jewelry Tools amp; Equipments Type : Testers amp; Measurements Brand Name : HOYON Origin : Mainland China Item Type : Jewelry Tools amp; Equipments Battery : not include Use method reference. Install the battery, turn on the power light, after a while, the preheat light on! Detection, the three-color indicator light to the fourth frame, then the hand should be pressed behind the triangle of iron, the probe is vertically aligned with the test object, if it is a diamond, the light jumps to the ninth frame or above, that is, the red light area, and emits the sound of drops. If the test is jade, the light will light the fifth or sixth, indicating that the hardness of jade reached, and there will be no sound. Features: Easy operation. LED light and audio result indication. The red light will be showed and the audio indicator will ring if the stone is real diamond. Simple calibration for stones of various sizes. Accurate and reliable reading. Matched with a testing platform for loose stones. Light weight, matched with a convenient carrying case. Detailed user manual is included in the package. Maintenance and repair: 1, the instrument is very sensitive to the probe, must be particularly careful to protect, do not use should be set on the sheath. 2, the preparation of the indicator light is very dark, shows the battery will run out, should be timely replacement battery. 3, the instrument is not used for a long time, please take out the battery. 4, in order to detect accurately, the proposed correction once a year. Specifications: Color: Black Material:ABS Power supply: 1 * DC 9V Battery (not include) Package Included: 1 * Diamond Selector II 1 *