Model:SF-400 Scale Size:240*170*35mm Carton Size:515*460*395mm Number:40pcs/CTN Features: Equipped with a high precision strain gauge sensor system Large LCD and excellent load cell Auto zero resetting/power off Mode function (g/oz/ct/tl) Over-load/Low battery indicator Large square weighting pan Outside calibration Auto backlight (optional) Net weight/stability indication 1.5v×2AA Battery (included) or AC/DC adapter 9v/100mA (not included)