... an internal universal switching power supply Specification:Capacity:5 to 20,000 lb/kgDisplay resolution:1:10,000Weighing units:lb, oz ... APW (without Auto-add) (lb/g):1dSample size:5, 10, 20, 50, 100, 200 piecesDisplay:1" / 2.5 cm high, 6-digit ... temperatures up to 88°F/31°C, decreasing linearly to 50% at 104°F/40°C, non-condensingNet Wt. (lb/kg ...