Detecto’s in-bed scales comes with flame-retardant, antibacterial 6 ft. (1.8 m) long stretchers that are positioned beneath the patient and hydraulically lifted inches from the bed for weighing. They come with an adjustable weighing arm, locking casters and sturdy steel structure. The USA-made model IB800 features base broadening stance for additional stability. The ZERO key lets clinical professional and staff to easily subtract the weight of bedding for precise patient measurement. Key Features Made in USA Quality 800 lb x 0.2 lb / 350 kg x 0.1 kg capacity Six AA alkaline batteries (not included) or optional AC adapter .75-in-high LCD Sturdy Steel Construction Not for transport. EMR/EHR ready 800 lb/350 kg Capacity Hydraulic Lift Mechanism EMR/EHR Ready Fits Through 32 in/81 cm Doorways