I purchased this model back in 2003. Before that, I went through scales on a yearly basis. I used it in my bakery and then later at home doing professional baking. I'm still using it, but I liked the scale so much that I bought another to use on the second floor of the house,(for shipping and letters), so I wasn't running up and down the steps. This scale weighs in ounces, pounds, grams, and kilos and goes to 15 #'s instead of an error message over 4 #'s. It's at the top of my recommendation list for the baking classes I teach.