2 In 1 Moissanite and Diamond Detector Jeweler Diamond Tool Gemstone Tester Tool Item specifications: Condition: 100 percent New Type: Jewelry Tools and Equipment Tool Type: Diamond or Moissanites Tester Material: Plastic Color: Gray Pattern: Solid Style: Modern Voltage :AC 220V DC 9V or use the battery ( battery not include ) Item features: Automatic and manual mode. Linear display for increased information. Adjustable gain for small stone sizes. Compensation for ambient temperature. Fast warm up time, ten seconds! Portable battery ( not include due to shipping limit ) Auto shutoff with a push button switch. Unique new antifade circuit which compensates for stone heating. Low battery indicator for accurate readings. Multipurpose alarms. a. Beeps when ready. b. Metal alert. c. Beeps repeatedly when testing a diamond. Package includes: 1 x Diamond or Moissanites Tester (include a power adapter , but without battery for airmail forbidden,thanks )