Does the manufacturer state the scale's variance? For example + / - 1 mg?
635420
The GemPro 25o usre manual states its capacity at 50 grams with a precision of 0.001 grams (1 mg). In grains, this translates 770 grains with a precision of 0.02 grains.
1642372
On the grams setting, the scale reads to 2 decimal places: i.e. it will read 0.43 gms but it will not read 0.436 gms. I do not have a way to determine if it rounds up or down in the 3rd decimal place. Hope this helps!
253655
There is a decimal point but I'm not sure how precise the measurement in grams is.
2172687
Yes, but only if good metrological practices are observed. 1 milligram = 0.001 grams, and that is the resolution of this scale.
287527
Yes, if you tare the weight with something on the scale and then take it off, it will tell you the negative weight. (Negative weight meaning what the object on the scale weighted, before taring the scale back to 0.)
926442
Randy you guessed correctly, 1543.2 grs is the calibration weight that comes with the scale, it will weigh out more than that but I never tried how much. Variance is one tenth gr. Scale is very sensitive to any air movement in the room and that's good in my estimation.
384905
I just pulled out my scale to test this. I set an object on it, set the tare weight to zero, then removed the object. The scale reads negative the exact weight of the object. It also reads in pounds & ounces.
936413
When I purchased this scale it was already pre-calibrated. I just used it right away and have never had a problem with it being inaccurate!
14251
It is not a standard scale. Shows 1/27 scale on the bottom. Close to a normal 1/24 scale though.
452665
Yes. For example, I put the plate on the scale then zero it out. If I remove the plate, the scale displays a negative number. I then repeat the process with each item I add--zero the current reading then add the next item. I hope this helps.
1810779
Hello, The scale reads in .1 gram increments, so it will read .1, .2, .3 etc and 21.1, 21.2 etc. Have a great day!
65008
I've never tried it, but have you checked with the USPS to see if they have any calibration weights on site? I'm sure their scales, like all scales, have to be calibrated regularly. You could take it to them and see what they say. I live in a rural area and the local branch is never very busy, so I'm sure they would help me. A busier location may not be as helpful.
208373
Okay. Well I don't see anything stamped on the underside about the scale. Sorry I could not be of more help. (Ginette)
300464
No, and also I have found that when comparing it with other scales I and my friends have, it seems to give a lower percentage reading then the others, on this one measurement. In fact its number is about half of what the others report.
88035
scale will measure accurately to less than 1/10 mg. as scale is sensitive do not use in drafty areas.
1410020
I have no way to verify accuracy since I don't have nist traceable standard weights. Precision seems OK. I have noticed that the scale sometimes doesn't want to zero. I'll turn it on and it moves away from zero (I have seen it go higher and lower). When it does this the zero may wander as much as 10 lbs. Eventually the scale stabilizes. I have not contacted the mfg. I find this annoying but am willing to live with it since it rarely happens.
2036097
To be honest I never bother calibrating mine, and things have turned out okay. I did realize that was kind of dumb so compared the known weight of an object (weighed on another, calibrated one) to the weight shown on my scale and it was close enough for my purposes (like off by 0.1 or 0.01 (can't remember if there's two points after the decimal or not)). Though you can always calibrate w a nickel or other coin w a known weight of course.