Robust stand on scales with a large, backlit multi-display to show weight, height and body mass index (BMI). The 460 x 330mm stainless steel platform on these stand on scales can accommodate very large patients. The indicator head can be adjusted to any convenient angle. Power is from a long life re-chargeable battery and a charging adaptor is provided. The stand on scale has a 250kg capacity. The 524J/BMI model is identical to 524/BMI but height is reduced to 340mm.