This tiny little scale will measure your letters in both grams and ounces at the same time. Just clip your mail on the end and check out each side of the scale...grams are on one side, and ounces are on the other.
Thanks to the dinky size of this mechanical hanging scale, and the included protective pouch, you can keep it pretty much anywhere. It takes up hardly any space at all. You can even hang it up by the loop at the top, if ya want.
Q: how do you check scale for accuracy?
A: Hey there Kenny,The best thing to do is affix a mass of known weight from the scale and see it they match up. A calibration weight would be your best option. I would recommend a weight between 1 and 20 grams. 10 grams would be the perfect amount. Take care,Brandon