Uline has accurate scales and paper products in every shape and kind. Temps guns are all about the same just look at the DS ratio if you deal with Royals you likely need a 1:1 or 6:1 any farther is likely more of a pain than it is worth. I would suggest looking for one that takes regular common batteries... AA AAA 9v. I had one that took a V625px battery... I can special order it... I would avoid any that does not take an off the shelf battery or takes an expensive one. (2 x 8$ battery adds up...)