Synchronized and Highly effective Diamond Tester is here to help you test your Diamond accurately. It can separate Diamonds from Sapphire and CZ / glass with a metal detecting feature.The SmartPro Finder I Tester has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results. With the thinnest probe tip size of 0.48mm, Smartpro Finder I (SPF I) tests diamonds as small as 1.0mm (0.01ct). Test results are instantly indicated by bright LEDs with a buzzer sound and a low battery indicator. Features Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone Thinnest probe tip (0.48mm) for testing gemstones as small as 1.00mm (0.01ct). Metal alert buzzer to ensure that probe tip is in contact with gemstone during testing No waiting time between tests Clear and easy-to-read Super Bright LED display Low battery indicator Benefits Verifies authenticity of diamonds instantly Tests both polished and unpolished Diamonds Tests diamonds as small as 1.0mm (0.01ct) Consistent and reliable results every time No waiting time between tests Clear and easy-to-read Super Bright LED display Simple and easy to use Light and portable tester that can be used anywhere Power and Battery 2 x AAA batteries Optional Accessories None (all are included in the package) Dimensions and Weight Length: 165mm (6.5 inches) Diameter: 25mm (0.98 inches) Weight: 55g (with Battery) Included Accessories SmartPro Reader I Metal stone Tray User Manual Warranty Card Protective Carrying Case Neck Strap Operating Conditions Operating temperature: 18°C- 27°C (65°F- 80°F) Storage temperature: 10°C- 50°C (50°F-122°F) Technical Specifications Length and Diameter: 165 mm, 25 mm Weight: 55g (with Battery) Power: 2 x AAA batteries Battery Life: Up to 2.5 hoursof continuous use based on alkaline batteries Standby Time: 5 min from the last measurement Operating temperature: 18°C-27°C (65°F-80°F) Storage temperature: 10°C- 50°C (50°F-122°F) SKU: 56.928 UPC: 196943953500 Brand: SmartPro MPN: 56.928 Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.G026D