Phenomenal deal - In stock for immediate delivery, 620g x 0.001g, motorized internal calibration, 3 door glass draftshield, made in Germany, Quality is a bonus in the current market, as customers look for bargains but are more aware of value than ever. We have evaluated just about every major brand of milligram balance on the market today and nothing offers the value, features, speed and accuracy of the GK3102 when you compare apples to apples. All balances begin as a concept, on rare occasions, they end as one. The GK3102 offers the best value in the world.

Sartorius GK3102 Carat Balance offers 0-3100 carats weighing capacity and increments in 0.01 carat divisions (0.01ct, 0.02ct, 0.03ct ...). The balances also features selectable application programs from percent weighing for formulating solutions; density determination to verify the authenticity of a gem; to count function for counting findings and small beads or rhinestones.

Carat weight affects prices of precious gems dramatically and determining the accurate carat weight is critical for anyone in the jewelry industry. Many people think of carat weight as the size of a stone. However, two gems of the same weight can look very different in size. If a gem stone is cut deep and narrow, it will look much smaller than another gem stone of the same weight that is cut shallow and wide. The jeweler with a Sartorius GK3102 on their showcase counter top could be the competitive advantage of a customer choosing your jewelry store over the guy next door. When a customer sees a quality high precision balance in your store this builds confidence the client is getting what they are paying for.

Like a fine piece of jewelry Sartorius is a German company and maker of some of the world's finest balances since 1871 when they introduced the world's first pharmaceutical balance. Only Sartorius shatters the limits when "the Guinness Book of World Records" listed the Sartorius Model 4108 as the most accurate balance in the world. Sartorius' excellent reputation and image in the technologically sophisticated field of weighing balances make them a global leader. Sartorius brand image is recognized throughout the world in the jewelry and geologist marketplace as the weighing standard.

Sartorius GK Series are also quick and easy to clean with its removable side-doors and stainless steel construction. Calibration is simply a press of the button with the motorized built-in internal calibration standard on all Sartorius GK & GW Gem Balances. Intuitive high contrast backlit display with icons to tell you at a glance which application you are using. Toggle between 5 different weigh modes at a press of the button and you can define the order of the weigh units. The balance also has a user defined weigh mode enabling you to define a custom weigh mode. You can also change the language to German, Italian, Spanish and more making the Extend Series the bilingual jewelry balance of the world. Text prompts and cursor keys for navigation make it so simple for you to configure the balance to meet your individual requirements.

They promised you accuracy. They promised you speed, easy of use & affordability. They promised you the perfect balance but only Sartorius delivers weighing nirvana with the new Sartorius Gem Extend Balances. When you need to weigh and you want to best prices on Sartorius Gem Balance Precision Weighing Balances is your authorized stocking gem dealer. You can see the complete offer of Sartorius GK & GW carat and gold scales at the bottom of the page.

The latest technology. Sartorius utilizes 21st century technology, such as the unique robotically etched monolithic weigh cell, which ensures long-term high accuracy. The Sartorius Extend series features the latest powerful microprocessor technology, shortening the response times for faster results. Reliable weighing results, all of the time - even under less than ideal ambient conditions, thanks to the Extend´s highly sophisticated digital compensation algorithms.

Capacity x Readability (ct)	3100 ct x 0.01 ct
Capacity x Readability (g)	620 g x 0.001 g
Repeatability (std deviation)	± 0.005 ct / ± 0.001 g
Linearity	± 0.01 ct / ± 0.002 g
Response Time (average)	1.0 seconds
Tare Range	FULL to Capacity
Selectable Weight Units	g, kg, ct, lb, oz, ozt, tlh, tls, tlt, Gn, dwt, mg, /lb, tlc, mom, K, tol, bat, and MS.
Selectable Application Programs	Toggle between 5 weight units, weigh average, calculation, dynamic animal weighing/averaging, net-total formulation, percent weighing, totalizing, density determination and counting
Display Update	0.1 - 0.4 seconds
Display	LCD with backlit
Operating Temperature Range	50° F to 86° F (+10° C to +30° C)
Allowable Ambient Operating Temperature	41° F to 104° F (+5° C to +40° C)
Sensitivity Drift	±2 ppm / °C
Motorized Internal Calibration	YES
External Calibration	500 g Optional
Pan Size	ø 4.5" in / ø 115 mm
Draft Shield Chamber Height	160 mm / 6.37" inch *Note draftshield is not removable
Dimensions (entire balance) W x D x H	9" x 11.9" x 10.2" inches 230 x 303 x 260 mm
Built-in RS-232 Interface	YES
Weighing Below	A port for a hanger for weighing below the balance is available.  You can attach a sample using a suspension wire, for example.  Common applications for weighing below the balance includes density determination.
Power Source	120 VAC AC adapter
Power Consumption (VA)	maximum 16; typical 8 (STNG6)
Approx. hours of operation with YRB05Z rechargeable battery pack (backlighting on)	35 hours (requires purchase of optional YRB05Z rechargeable battery pack)
Standard Equipment	AC Adapter, Sliding-door draft shield, Shield ring, Shield plate, Motorized internal calibration
Optional Accessories	RS-232 cable, USB interface kit, External calibration weights, Printer, External rechargeable battery pack, WinWedge Software, Density determination kit, 13" x 15" Granite isolator slab

AC Adapter
User Manual