Smart Weigh GEM20 Milligram Jewelry Scale, 20g x 0.001g, USB-C or AAA Powered, Spoon & 2 Tweezers

This is a fabulous High Precision Digital Weight Scale. I am most pleased I can push a button, weigh my measuring unit, then hit the button on the left, which subtracts the weight of the weighing tray so that the screen reads 0.000 g and then, since I need to have precisely 0.015 grams of a powder, easily get this precise amount. Then, with a large flip open cover, I can leave the weighing tray on the unit, my weighed power in the weighing tray, put down the cover to protect the powder, and have this meager dosage ready to take with my 120 mg. dosage of Armour Thyroid medication for my thyroid at 4:00 a.m. I don't even have to find my bifocal glasses to see anything! Doing this, this way, saves me over $50 monthly.,I couldn't have asked for a better product to assist me. I did a lot of research to find the proper scale, and this one easily meets all my powder needs for any of my multiplicity of supplements where the dosage is 1/8th of a teaspoon or less up to 20 grams. Currently I use other teaspoons which I level off with a knife. And, once I figure out how to use a drop, a smidgen, a pinch, a dash or a tad, I will be using those measuring tools with this unit as well.Additionally, I could use this unit because it also weighs oz, ct , ozt, dwt, gn, and utilized high precision sensors to ensure the advanced accuracy of 0.001 grams and capacity of 20 grams. The set comes with a set of tweezers, weighing tray, with a dipping area if you are working with fluids, and two 10 kg calibration weights. The unit also features a flip open cover to protect the scale's platform besides a back lit screen for easy visibility.In fact, since the summer of 2014 I have been having hypothyroid issues, where my dosage of Armour Thyroid has had dramatic swings, the loss of 40 lbs. over 3 months, the weight gain of 40 lbs over 2 months, and intense chronic fatigue, etc. Then, when I learned (no benefit of my MD or Pharmacy) to separate iron and magnesium by 4 hours before as well as after my thyroid pill consumption, my thyroid medication settled down to more normal numbers. But, my thyroid is still in a state of flux.I also commenced dicing a raw beet a day to assist my thyroid as well as eating 2 Brazil Nuts daily for my selenium level. This caused my thyroid medication to be reduced to 135 mg. daily from 150 mg and may again decline as my system gets regulated with beets, Brazil Nuts, and no magnesium or iron within 4 hours either side of my thyroid medication. Yet, this dosage of 135 mg. is not a normal one and becomes 2 prescriptions, and thus costs me for 2 prescriptions. Got to love the drug companies who've really figured out how to ....I refused to purchase the 0.015 mg dosage (the size of a tiny nail head). But, I've a goodly supply of 300 mg thyroid medications, which I was slicing into 1/2 or 150 mg which would cost me for 1 prescription and last for 2 months, thus saving me $50. My dosage used to be 90 mg. This kept my medical cost reasonable. So, I ground up the excess supply into powder. Each evening, I use my Heathrow Scientific HD 15909 Spatula with Flat End and Spoon End, 9" Overall Length, to select a wee amount of this powder, and put it in a measuring cup on this scale. It is so easy to get precisely 0.015 grams. If I need tweezers to select a smaller amount of powder, I do that as well.One of the greatest features of this Smart Weigh is the fact you can easily weigh the tare (weighing tray), and once you have that, that tare weight unit is known by the system. Then, push the button on the left, your scale will read 0.000. This makes it so easy for me to read precisely 0.015 grams.I truly hope this information is of help to you.And if any of you have thyroid issues, it doesn't matter which thyroid medication you use, the thyroid medication will not work correctly unless you separate by 4 hours your taking of magnesium or iron, and iron is in everything except for milk products and a few candies. Even yogurt which has fruit on top has iron in it and will interfere with your medication. This period is 8 hours and not a millisecond less!I'm so glad I made this purchase and it has a place of honor on my kitchen counter.

I needed a replacement millligram scale to weight out daily powdered meds for our pooch, and this was my choice. So far, it has been excellent. Small size yet functional and accurate. Unlike a prior scale we used, this one does not suffer from a “floating zeropoint” issue at low weights. I can tare out the weighing planchet to zero, and then sprinkle the powder until I get the weight I need. With some scales in this range, trickling tiny amounts fails to register on the scale—big problem. I checked the accuracy using some known low weight items, lower than the 10 gram weights provided, and it’s spot on. I would recommend for this use. Just don’t expect it to be able to weigh out single digit low milligram quantities…you’ll need to spend hundreds of $$ to do that.

Nice little scale that, so far, has been very accurate. I use it to measure potassium bicarbonate in small amounts for my espresso water (added to distilled water). The scale is consistent. And it includes two calibration weights - along with tweezers and a nice little storage case.

This is a very nice scale for the price.As others have pointed out, once zeroed (when initially turned on, or when tared), the scale will ignore changes in weight below about 5 mg. It's a design choice - questionable, perhaps, but common at this price point. Measuring at a mg level is really touchy: a breeze from your HVAC, your breath, etc., will cause measurements to change. Most people would be annoyed by a shifting zero.As long as you're aware of this, it's not a problem. Start by adding at least 5 mg, then the scale will track tiny additions from there. Or if needing a very small amount, turn it on, add the tray without re-zeroing, add the amount you need to the number on the display, and that's your target. If the measurement is critical, you can check it by dumping the tray into another container, re-zeroing, and dumpimp the material back into the tray all at once.In practice, I wouldn't use this for amounts under 10-20 mg anyway, which I think is very reasonable at this price point.My calibration weights read 10.001 and 9.999, so I didn't re-calibrate.Other reviews noted problems with auto-off. For my unit, how to enable/disable auto-off is covered accurately in the surprisingly readable manual.The scale comes with two 10 g weights for calibration. Both are required since calibration involves checking zero, mid-range, and top-of-range. Oddly, there's a spot in the body of the scale for one of them, and a spot in the box for the other. I suppose the idea is that you can use one calibration weight any time to check mid-range.The box the scale comes in, while just cardboard and open cell foam, is pretty decent, with a nice magnetic closure. It provides for decent storage at least in a reasonably clean, dry environment.

I got this tiny scale to accurately split pills for my cat. I found that my pill splitter was extremely inaccurate, and when the dose increased to 3/4 tablet, a pill splitter would not work. I can now accurately cut a pill into several pieces and get to the correct dose by adding small pieces to the little measuring pan to get to the 67mg dose I need. Very quick and easy.It comes with two calibration weights - one varied a tiny bit from 10g, but one was exactly 10g and works for periodically checking the accuracy. I have been using the scale daily for 3 months and it continues to be very accurate. I could not manage the dosing without it. The little pan is especially helpful.Keep in mind that the total capacity is only 20 grams, which is less than an ounce. It is definitely not a kitchen scale.

Nice and accurate. Bulk supplements and will also use to weigh jewelry. Love the compact size.