Brand: Beurer Model: BM 40 Product Type: Automatic upper arm blood pressure monitor Display: Large, easy-to-read LCD display Measurement Method: Oscillometric, non-invasive measurement of arterial blood pressure on the upper arm Measurement Range: Pressure: 0–300 mmHg Pulse: 40–180 beats/min Accuracy: Pressure: ±3 mmHg Pulse: ±5% of reading Cuff Size: Standard (22–35 cm) Memory Function: Stores 2 × 60 readings for two users with date and time Arrhythmia Detection: Yes – irregular heartbeat indicator Power Source: AC adapter (included) or 4 × 1.5V AA batteries (not included) Automatic Switch-Off: Yes – to save energy Low Battery Indicator: Yes Weight: Approx. 600 g (without batteries) Dimensions: 139 × 94 × 53 mm Accessories Included: Cuff, storage pouch, AC adapter, user manual Warranty: Typically 3 years