Most Easy, Practical, Smart and Innovative Postal Scale The PT86 BS Digital postal scale is designed to meet various mailing and shipping needs, from a 0.2oz letter to a 50lbs package; Improved Large Display with Energy saving LED backlight allows you to read numbers even in the dark; Battery powered option enables you to weigh packages at any time any place; Choose a preferred Unit from different Modes: pound/ounce, kilogram and ounces; Smart Tare And Hold feature; Worried about the accuracy of the scale after a long time use See the innovation in this scale: you can do calibration by yourself choosing any knowing weight from 5lbs. Manufacturer Calibrated out of the box; 10 Year Manufacturer Warranty