The Omron M2 Classic is an automatic upper arm blood pressure monitor designed for home use. It features a digital LCD display for clear readings. The blood pressure measurement range is 0-299 mmHg, and the pulse measurement range is between 40 and 180 beats per minute. Accuracy for blood pressure is ±3 mmHg, and for pulse, it's ±5% of the displayed value. The device uses an oscillometric method for measurement and inflates automatically with an electric pump, with an automatic release valve for deflation. It includes features such as irregular heartbeat detection, a cuff wrapping guide, and a blood pressure level indicator. The monitor has a reading memory that stores up to 30 measurements. It operates on 4 1.5V "AA" batteries or an optional AC adapter (100-240V, 50-60Hz). The device is classified as IP20. The blood pressure monitor weighs approximately 250g (without batteries) and has dimensions of approximately 103 mm (W) x 82 mm (H) x 140 mm (L). It comes with a 3-year warranty. Recommended working conditions are between +10 and +40°C with 15-90% RH (non-condensing) and 800-1060 hPa. Storage/transport conditions are between -20 and +60°C with 10-95% RH (non-condensing). The device is protected against electric shock by being internally powered (when using batteries only) or as a Class II ME device (with optional AC adapter). The color of the monitor is white.