The Drive Medical Automatic Wrist Model Blood Pressure Monitor features a large easy-to read digital display that includes date and time of measurement. It is lightweight and easy to use with quick, quiet inflation. The auto-off function preserves battery life. Features Large easy-to-read digital display 120 reading memory recall Date and time display Pulse rate indicator Auto-off function Lightweight and easy to use Quick, quiet inflation Specifications Measurement Method: Oscillometric Measurement Range: 0-300 mmHg Memory Capacity: 120 Readings with Date & Time Power Supply: (2) AAA batteries – not included