Smart logic technology and an advanced memory * Measures systolic  diastolic pressure  and pulse * British Hypertension Society (BHS) AA rating ensures unrivaled accuracy * Smart Logic Technology determines ideal inflation level * Recalls last 99 readings for two users * Wrist cuff fits 5.3  to 7.7  wrists * Auto off * Not made with natural rubber latex * 2 AAA batteries included * Compact storage caseMeets or exceeds EN 1060-1  and EN 1060-3 * 5 year warranty * Cuff range 5.3 -7.7  (13.5-19.5cm) * Display: LCD * Measuring method: Oscillometric * Pressure sensor: Capacitive * Systolic/Diastolic range: 30-280 mmHg * Pulse range: 40-200bpm * Cuff pressure display range: * 0-299 mmHg * Memory: Last 99  * Readings x2 * Measuring resolution: 1mmHg * Pressure accuracy: ?3mmHg * Power source: 2-AAA Alkaline batteries * Storage temperature: -4?F - +131?F (-20?C - +55?C) * Operating temperature: 50?F-104?F (10?C-40?C) * Humidity: 15-95% * Dimensions: 3.75 x4.25 x4.25  (85x77x75mm) * Weight: 0.35lb (148g) *