The scale is controlled by microcomputer. It can measure people's height and weight automatically after putting a proper coin. The measuring results can be displayed, printed and spoken. Advanced ultrasonic technology assures the exactness of measuring results. Technical data: Measurement scale of height: 100-200cm Minimum division: 0.5cm Measurement scale of weight: 8-160kg Minimum division: 0.1kg Net weight of the machine: 35kg Height of the machine: 240cm Working voltage: AC180-240V or 110V