American Weigh Signature Series Black AWS-100 Digital Pocket Scale, 100 by 0.01 G Review

Average Reviews:

(More customer reviews)This scale is a great value for the .01 gram precision it offers. Once calibrated it is quite sensitive and accurate. Mine came quite far from calibrated, but based on the other reviews here it appears this is only a fluke. The scale is lightweight and very portable, being roughly the same size as a Nintendo DS Lite. Build quality is good; it looks like it will last a long time if used properly and carefully. Comes with two AAA batteries and a space for storing a pair of extras. Very nice scale for the price.
One hint about calibration: if you forget to buy the 100g calibration weight, you can simply use 20 U.S. nickels, as each nickel is exactly 5g.

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For those seeking a high-tech, portable scale, the AMW model is durable and compact. It is designed to weigh up to 100 grams in 0.01 gram increments, and the backlit LCD display helps make the numbers easy to read. An intuitive flip-open lid protects the delicate weighing surface. Made from smooth stainless-steel, the weighing surface is easy to clean. The unit is powered by two AAA batteries that come included and is backed by a powerful 10-year warranty.

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American Weigh Gemini-20 Portable Milligram Scale, 20 by 0.001 G Review

Average Reviews:

(More customer reviews)I needed a scale that could measure quantities less than 10mg and did not want to buy a $1500 piece of lab equipment. If you are careful and consistent with your measuring techniques, this scale is repeatable to within a few milligrams - often to its finest resolution of 0.001g. These are essential for this performance: 1) let the scale stabilize on a hard, flat and level surface. 2) Make sure the sample tray is properly seated inside the circular detent of the scale's metal measuring platform. If you're not careful, the sample tray (as provided) can touch the body of the scale, grossly throwing off the measurement. I glued a small piece of metal to the bottom of the sample tray raising it higher for more clearance. I'll often tap the table that the scale is on to help everything settle. 3) calibrate as described in the manual. 4) place and remove samples consistently and carefully - don't drop them. Even the slightest impact can throw off the measurement. 5) wait for ten seconds or so for the sample to settle. 6) for minuscule samples, use the ten gram weight in addition to the sample to put the scale in the middle of its operating range. With a little care, one will get closer to the performance of a lab-grade milligram scale than anything else for this price. Nice scale.

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Take a handy little digital scale on the go and weigh items up to 20 grams in 0.001 gram increments. The little scale is great for weighing precious gems and other valuables. Its flip-down shield protects the delicate weighing surface. A removable stainless-steel weighing platform makes removing samples easy. The scale's included carrying case comes with tweezers, a tray, and a calibration weight. The unit is powered by 2 AAA batteries, which come included, and is backed by a 10-year warranty.

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