Salter-Brecknell PS500-22S Compact Light Weight Floor Scale with LCD Display, 22" Length x 22" Width x 2" Height, 500lbs Capacity Protocol - standard NCI interfaces to most common shipping software Low profile stainless steel platform with mild steel construction Understructure and stainless steel/ABS indicator Power - Operates on four (4) AAA batteries or AC (both included) 500lbs Capacity