PREMIUM CLASS CARAT SCALE The engineers at GemOro have created two new generation, superior carat scales with unique features, style, precision, durability and more! These extra precision carat scale offer accuracy of 0.005ct, with a capacity of 100ct and 250ct! Each scales functions are controlled by a convenient, easy to use 4-button control panel. Its innovative, low profile flip up draft shield easily expands to accommodate the weighing of large stones or parcels. The rubberized compact carrying case protects the scale while in transit and holds the scale, calibration weight, Swiss-style diamond tweezers, diamond scoop, stainless steel weighing platform and universal voltage 100-240V AC adaptor. 100ct x 0.005, g, dwt, oz, ozt and gn Parts counting function Large stainless steel weighing platform & bright blue backlit display Push button digital calibration, tare, memory, low battery indicator and battery saving auto-off functions Innovative low profile tinted draft shield manually expands for weighing large diamonds, gemstones and parcels Durable ABS construction with EZ-grip rubberized paint finish Includes a rubberized protective travel / storage case with compartments containing scale, stainless steel calibration weight, stainless steel weighing platform, scoop, AC adaptor and Swiss-style locking diamond tweezers Powered by (4) long-life included AAA batteries or its supplied universal voltage 100-240V AC adaptor 5 Year limited replacement warranty