From A&D, the GP Series Gold Scales are extremely user friendly. These scales come standard with WinCT to provide easy transmission of weighing data from the scale to a computer using the RS-232C interface. Features automatic self calibration when the scale senses temperature changes, and one touch internal calibration, for ease and to save you time and money. The swing arm with clear and large VFD display can be used while up, down, or anywhere in between. The display is easy to see, can be viewed in the dark, and has a wide angle view to prevent mistakes. Weighing modes include g, kg, lb, L OZ, OZ, ct, dwt, OZt, mom, TL, MS, tola, DS and % and counting PCS. 5 year warranty. Maximum weighing capacity is 31kg x .1g.