Are these scientifically calibrated? Also are the exact when leveled or rounded?
1742845
sorry do not know for sure on either count,but i would say level for exact measurement.
903423
I have not done a calibration to establish +/_, however, the fill gauge reading and pressure fill adjustments was also confirmed by my GMC Truck pressure sensor system monitor.
255572
They are not rounded. However, all you have to to do is tap each corner on a hard floor to dull them. Took me about 10 minutes to fix them all this way. Our baby has loved these since she was 12 months old!
187560
I did not weigh them to confirm the variance but they performed very well and consistently. The finish is very polished so they do not have the barbs like some others that we have tried. I recommend these especially considering the cost.
1552000
Yes they are rounded. Never have left creases in my hair. Love this flat iron!
627493
We have been using the scale 4 months, we have not calibrated it. We used it right out of the box, just make sure to use, on a level flat surface.
1410021
Based upon the weight of my dog on the scale compared to the scale at the vet's office, I'd say they are accurate to within a quarter pound. More importantly, they are incredibly consistent. Since purchasing them, I have periodically (initially every week or so; now maybe once every month or two) tested them by placing the same pair of 30 pound iron dumbbells on them. Maybe 2 or 3 times, they have read 58.4, otherwise, they are always 58.6. Note: I believe that the pair of dumbbells are less than 60 pounds. I have checked them on other bathroom scales, and they have always weighed less than 60 pounds on those scales too. Regardless, consistency is far more important than the accuracy in bathroom scales. After all, the purpose of bathroom scales is to monitor the change in one's body weight over time, not for commercial purposes, such as weighing copper ore. IMO these are the best bathroom scales that I have ever used.
1160630
I never calibrated and just started using it. I took several packages to the post office and everything checked out perfectly. They explain how to calibrate it in the manual.
1812014
It is plenty accurate. You can get a better set but, for the money, these are very good.
275764
I have purchased two of these and both were in perfect calibration out of the box. One is still new but the other one has been working well and has held calibration for 10 months. If you do want to have calibration capability all you need is a 500 gram weight. a nickle weighs 5.1 on both of mine and a dollar weighs 1 gram even.
1777385
No calibration required. Just keep the test tubes clean. Works great by the way.
124807
I routinely measure 0.04 grams, works for me but I have no way to compare. The calibration seems right on.
2086923
They are slightly rounded. In my opinion they are well worth the money.I am well pleased.
1396587
I checked it with my other meter and it appears to be already calibrated. Both of my meters match.
1030105
Yes, they are supposed to be even, but there is enough room for error to make them uneven as there are no guides/grooves to ensure they fit they way they are supposed to. So a little bit of care and tweaking is needed.
551979
Yes, they are accurate. I use on deck for pool towels. Matches other outdoor furniture very well. Very satisfied.
1419850
I don't believe so. I think they were centered. The unit is high up in my skylight shaft, so I cant readily check it.