Veridian Healthcare CH-657 Citizen wrist blood pressure Cuff Type: Wrist Features: 90 Memory recall function Irregular heartbeat indicator Body movement indicator Average of last 3 readings 15mm-Slim design Large LCD display Large buttons for easy operation One touch operation Automatic Power off function With compact storage case Memory: 90 memories Cuff Circumference: 5.3 - 8.5 Measurement Method: Oscillometric method Measurement Range: Pressure: 0 to 280 mmHg Pulse: 40 to 180 pulse/min Measurement Accuracy: Pressure: +/-3 mmHg Pulse: +/-5% of reading Power Source: AAA sizex2