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  • American Weigh Scale Scalemate Sm-501 Digital Pocket Scale, Silver, 500 X 0.01 G
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American Weigh Scale Scalemate Sm-501 Digital Pocket Scale, Silver, 500 X 0.01 G

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List Price: $32.92
Price: $16.99 & FREE Shipping on orders over $35. Details
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  • Magnetic cover latch allows easy removal of the protective cover/expansion tray
  • Back lit display
  • Stainless steel weighing surface
  • Includes vinyl pouch
  • Available in 3 colors
6 new from $16.99

Frequently Bought Together

American Weigh Scale Scalemate Sm-501 Digital Pocket Scale, Silver, 500 X 0.01 G + American Weigh Scales 500WGT 500 Gram Calibration Weight + American Weigh Scales 200WGT Carbon Steel 200gm Calibration Weight Scale with Chrome Finish
Price for all three: $32.39

Buy the selected items together


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Product Description

This scale offers a sleek contemporary portable design that is offered in three different colors. the vinyl pouch helps protect this eye-catching pocket scale. features an innovative removable magnetic protective cover which also doubles as an expansion tray. the stainless steel weighing surface makes cleaning easy and the backlit lcd display helps make reading the results easier on the eyes.

Product Details

  • Product Dimensions: 4.8 x 3.2 x 1.1 inches ; 0.3 ounces
  • Shipping Weight: 5.6 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0012TEQMG
  • UPC: 814859010253
  • Item model number: SM-501-SIL
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (18 customer reviews)
  • Amazon Best Sellers Rank: #93,484 in Health & Personal Care (See Top 100 in Health & Personal Care)
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Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars
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See all 18 customer reviews
An error code "out2" is displayed when you turn it on.
JJ
On the other hand, if you'll never be weighing anything that's close to a multiple of 100 grams then it won't be a problem.
D. Ellsworth
I've been using this scale for more than 4 years and had absolutely no issues with it.
Michael M.

Most Helpful Customer Reviews

21 of 22 people found the following review helpful By D. Ellsworth on December 7, 2009
Verified Purchase
I've never owned a precision scale before, and I ordered this one for use in a science experiment. I also bought a 500 gram weight to calibrate it with (and also a 100 gram weight, for testing purposes).

This scale appears to have a repeatability within about 0.015 or 0.02 grams, which is probably quite good for the price. It has a brightly backlit display which is easily readable unless you're looking from an extremely steep angle. However, it is programmed with a dishonest "feature"; if it registers a weight within 0.04 grams of any multiple of 100 grams, it will "cheat" and round to the nearest 100. For example, anything registering in the range 99.96 to 100.04 grams will be "locked" to 100.00 grams, and anything from -0.04 to 0.04 grams will be locked to 0.00, etc. This is applied after your tare is subtracted (e.g., if the scale internally registers a total of 131.28 grams and your tare is 31.24 grams, the display will show 100.00 grams instead of 100.04). I tested every multiple of 100 (0.00, 100.00, 200.00, 300.00, 400.00, 500.00) using drops of water in a glass, and the SM-501 does the same thing for each. This issue can be worked around by adding a known weight and then subtracting it in your head, but this defeats the convenience of having a "tare" feature. On the other hand, if you'll never be weighing anything that's close to a multiple of 100 grams then it won't be a problem.
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11 of 13 people found the following review helpful By Mr. Analog on January 10, 2010
Thank you Ellsworth for an excellent review. Actually the error is worse than that. Try this experiment:

Cut a piece of paper into a 8" x 1" strip and weigh it. It will register about a half gram.

Remove the paper and snip a 1" x 1/4" strip with a pair of scissors and let it fall onto the scale. The scale will continue to register zero as Ellsworth predicts.

Continue cutting strips onto the scale once per second. The scale will continue to register zero for as long as you care to snip!
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7 of 8 people found the following review helpful By davwe on February 26, 2010
Verified Purchase
Quite accurate, though I'm not sure it is 0.01g accurate, because I don't shield it from air movement. The pad is a bit small (2.5"x2.75"), and the tare button can easily be blocked if you try to weight using a container. Also, it is light and the feet aren't that grippy, so it is easily nudged astray. Finally, it *does* go out of calibration, so I check it once a month or so (good enough for my purposes...)

Regarding auto-zeroing small, slow weight additions, I understand that this is considered a feature for some reason. Like the others I don't know why this would be desirable. For precise measuring, you can gently press on the container or lift it up as you add/sub material. Either disturbs the scale out of that auto-zero mode.

Until now I have been satisfied with this scale - a great deal for 500g@0.01g. But after less than a year the buttons have started wearing out. I now have to firmly press and wiggle the power button to turn it on, and the tare button has started degrading as well. That is why I only gave it three stars.
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4 of 5 people found the following review helpful By Michael M. on August 28, 2012
Verified Purchase
I've been using this scale for more than 4 years and had absolutely no issues with it.
Experienced precision is about 0.02 grams. I never came across the effect D. Ellsworth described as I never measure exact multiples of 100 grams.

Ordered the same scale for a friend a year ago. It was way off from first use with recalibration not possible, and after describing the problem by email, I got a replacement without hassle which works fine ever since.

But that experience emphasized that owning a 500 gram calibration weight for testing is an absolute MUST.
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1 of 1 people found the following review helpful By Buyer on May 4, 2010
This is a extremely well made scale. It auto balances/stabilizes for accurate readings. It's never inaccurate and it came with a 500g weight to calibrate and I use that to check it. It's really small and have a well back-lit display that is easy to read. The casing is plastic but the weigh scale areas is of stainless steel and well made. I have had it for two years now and it's never missed a beat.
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By C. Ward on June 17, 2014
Verified Purchase
Works as advertised. It seems to stay in calibration pretty well, but it stays at home with me so it doesn't get jostled much.
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Verified Purchase
I bought this scale to weight my coffee grounds when I make coffee. That works fine and my coffee is much more consistent. But, I found that I did not need a scale capable of measuring to 0.01 gram. One eight teaspoon of grounds weighs about 0.2 grams and there is no need to measure grounds closer than that. A scale that measures in 0.1 gram increments would have been fine.

This scale will weigh items up to 1.1 pounds. If I had gotten a scale that weighed in increments of 0.1 gram, I could have gotten a scale that would weigh up to 4.4 pounds. That would have more overall usefulness.

I knew this scale was small, but it surprised me how small it is. Check out the dimensions to be sure they or ok. The scale platform on mine is a little crooked, so they have a little quality control problem there.

BE SURE NOT TO PUT TOO MUCH WEIGHT ON THESE SCALES. TOO MUCH OVERWEIGHT CAN DAMAGE THEM.
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By Terry Jenkins on January 14, 2014
Verified Purchase
This scale is perfect foe my needs. It's small footprint makes it unobtrusive on my workbench. I have used it several times since it arrived and it has functioned perfectly.
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