SENSE ON Technology, No more tapping scale to turn on. Step on and get instant readings! * Capacity: 400 lbs / 180 kg; - Measurement in increments .2 lbs * Light weight, Ultra thin Design; Please take off the battery protection tag for 1st time use. * Scale must be placed on flat, level & hard floor for accurate weight * Unit switch: the scale can display in Kg, Lb or St with unit press button in the back.