This easy to fit measuring rod (fittings included) converts the hand rail scale Seca 645 into a real multifunction talent. Because the determined height can be entered directly into the display unit of the Seca 645, all relevant data is captured and can be used to determine the patient's Body Mass Index (BMI). Measuring range 15 - 230cm/6 - 90". Graduation 1mm/1/8th". Dimensions (WxHxD) 120 x 1322 x 34mm. Weight 1.3kg. (Scale sold separately - see Special Purpose Medical Scales).