This is not a bad scale, but if you try to measure small amounts of a powder a little at a time it will re-zero itself as you put the small increments of powder on the scale as long as the added increment doesnt equal .1gm. So if you add 50mg to the scale (which is not calculable as the scale only reads .1gm increments) it will read zero, and rezero itself out. So you add another 50mg, same thing, zero. So you start wondering, and add about 340mg to the scale, it reads .3gm and zeros itself to .3 gms. so you end up with 440mg of powder and the scale reads .3gm. If you take that exact powder off of the scale and rezero the scale and put it back on it will read .4gms. This took me a while to figure out. This scale will also change the calculated weight of whats being wheighed if you have it on the scale for longer than 10-15 seconds. I do know why this is. If your going to buy a scale, buy an expensive scale, once, and take care of it and have it for a long time. It will be more accurate and reliable. Keep in mind though, all small increment scales are fragile and sensitive due to their electo-mechanical makeup so trying to find one that is durable is not possible. |
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