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details are important3.0:
You get what you pay for. I’ve taken university courses that involved quantitative analysis in chemistry. With research grade scales that measure down to the 0.001 gram there are significant differences in those scales compared to cheap versions you buy online.In laboratory-grade scales used for research yes even the air currents caused by the heating system can cause fluctuations in the measurements. Measurements would flutter. This is why they are designed with a tall glass box to block out air currents and the sliding door would need to be closed. These scales tend to be about $1000 or more. Even the laboratory bench needs to be perfectly level and the scale itself would have 4 adjustable legs to balance the scale. If the scale itself is not level the measurements would be off. Furthermore from experience even fingerprints result in measurement differences. That is how sensitive those scales are. And if liquids are being measured the glass stopper on the flask must be on otherwise the slight evapouration will result in a gradually declining weight measurement.In contrast this scale is no way as precise. One thing I DID find was that even for the same object but placed on different surfaces the measurement would be different. This might be due to very slight inclines on the table surface vs counter top as both are not 100% level. When the scale is not on a perfectly level surface it is not moving perfectly up and down and slight friction within the measuring system itself is affected. The difference I am seeing is it might weight 10.006g when the scale is placed on the table but 10.011g when placed on the counter top. These subtle differences likely due to how level the table is can affect measurements by +/- 0.005g or so.There does appear to have some problems with the scale. Some degree of friction is involved. If I have nothing on the scale pull the scale upwards first and releasing back to resting position and it is reading 0.000g and then I place the 10g weight on it it might give me 10.028g. But if I start with 0.000g put the 10g weight on it depress it all the way such that the scale reads 0-Ld (essentially maxed out the scale) and then allow it to spring back up it would read 10.000g. This means that depending on if you first fully depress the scale or if you fully stretch the scale surface and then start a measurement from there the slight friction or spring property difference causes a variance of +/- 0.028g.Also the two weights are slightly different. one might be 10.000g and the other might be 9.997g. I don’t know how accurate these weights are.One of the biggest problems with this scale is the lid itself. It acts on the hinge on the back and it is possible to lift the lid about 45 degrees or more and the friction would hold the lid up. Unfortunately I believe that when the lid is lifted up it is exerting some strain onto the base itself. The distortion on this is enough to change the scale reading from 0.000g to 0.016g. So there is a design flaw with the lid where the tension affects the readings. +/- 0.016 g.If everything was kept the same and stable (and measuring with the lid always closed) the same item might vary by +/- 0.001g.So when you combine all of the variences mentioned above when not properly controlled the same item might have a total variance of 0.005g 0.028g 0.016g 0.001g for a total of +/-0.050g if everything happened to line up that way. (realistically probably +/- 0.025g for the typical user). It is critical to control all of the above stated factors.How important is +/- 0.025g? If your object was 1.000g this is +/-2.5%. But if you are trying to measure something that is 10mg (0.010g) this is a variation of +/-25%. The smaller the weight the larger the % variation. I can understand why many reviewers are frustrated at trying to measure something as small as a few milligrams.Another design flaw with this is the height of the plastic cover. When the 10g weight is placed on the scale standing up the lid is not able to close. And because as mentioned above of the tension in the lid transferring through the hinge and onto the scale itself produces variance in the readings as much as +/- 0.016g and this can vary by the degree of opening the only way to get repeatable measurements is to always have the lid closed. This means that the two standard weights can not be standing vertically but must be lay down horizontally and it can roll side to side until it stabilizes. It also means that the objects you wish to weigh can not exceed roughly 7 mm in height. Any taller and it touches the lid. Larger objects would require the lid to be open to measure but now we question the accuracy again due to the tension of an opened lid.It does not appear to be sensitive enough to measure the weight of fingerprints.Conclusion: This scale is probably best if you wanted to weigh objects near or greater than 1.0 g with an approximate accuracy of +/- 0.025g (+/- 2.5%). The heavier the object the varience by % is smaller. (e.g. 10g +/- 0.25%). Smaller objects less than 1.0g would result in larger % errors. If you want to measure smaller items and with a greater degree of precision you’ll need to buy laboratory grade scales.If you control all the stated factors above and test your own unit for variations if every factor is controlled variation in measurement of same object might be limited to +/- 0.002g.Otherwise good for general purposes such as measuring the weight of jewelry.

Bruno Bibs5.0:
Let’s not lie and say that most people here aren’t using this product to weigh out substances. Now for those people who are contemplating purchasing this for the same reason please do so. This scale has treated me quite well and has helped me provide safe experiences for myself and friends the only thing is this is ultimately still just a $35 scale from amazon. DO NOT TAKE THE INITIAL SCALE RESULT AS FACT. Scale over and over and over again to be sure and you will usually find slight variances in mg weight. For especially potent substances or lethal ones too this step cannot be over emphasized. For substances active in the <5mg range scale out all the product you have and create a solution using pg or vg both conveniently sold here as well. Have fun my friends but always prioritize your safety! :)

Brian D Steel5.0:
I purchased this item back in November 2016 and have used it many times since. It is very nicely made and accurate and repeatable to within about +/-3 counts (0.003g) so long as you remember not to breath in the direction of the weighing plate!The scales are packaged with a pair of 10g masses which can be used both to quick-check that the scales are weighing accurately and (if they have drifted) to re-calibrate the scales using a simple and reliable procedure. Fine forceps and a removal pan both in stainless steel complete the set.If I had any criticism at all it is that the scales have a secure resting place for one of the two 10g masses but not both: the other has to live in the shipping box! Luckily this box is made of high-quality folded cardboard with a pre-formed moulded holder for all the items and a concealed magnetic closure so all is not lost.All in all these are perfect for weighing items such as prescription medicines airgun pellets or anything else small – diamonds would be nice but the budget doesn’t currently run to those!Would buy again without hesitation if this set got lost or damaged.Brian

Brenden Bourne3.0:
At £19.99 with free delivery this is a pretty nice high-precision scale. It comes in a very nice case with magnetic seal for safe transport an instruction booklet a little dish two 10 g weights for calibration and a pair of tweezers. The buttons screen and general design are good.It turns off automatically when you haven’t used it for a little while to save battery power.However there is one problem: it sometimes turns off when you are in fact actively using it and the measurement has been changing mere seconds ago.This is quite annoying especially because the tare is lost when it turns off and there seems to be no way to change this behaviour.For this reason I will be returning the product and ordering a different model that hopefully won’t have this issue.(My guess would be that it’s simply ignoring small changes when deciding when to turn off but obviously that’s undesirable; there’s a reason I bought a scale that measures in 1 mg increments.)

Dermot2.0:
I’ll summarise this as “Meh.” For more detail:Pros:* Basically works sort of.Cons:* Even immediately after calibrating it it’s ACTUALLY only accurate to 0.005g despite the 0.001 claims. That’s half an order of magnitude off what was described. I’d return it for this reason if it wasn’t such a hassle to return stuff.* The LCD screen is barely readable. You have to line your eyes up perpendicular to the angled display or the image washes out very quickly.* The thing NEEDS TWO 10g weights to calibrate it. These are included. BUT only one space for a weight is included within the body of the thing. So you can keep one weight with it and have to… what? keep the plastic bag that the other one came in sellotaped to it? They didn’t think this through. I suspect they added a second weight as an afterthought to try to help improve the poor accuracy but it doesn’t work.All things considered this isn’t worth buying. Avoid.

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