ORO-SM2 COMFORT electronic wrist blood pressure monitor Measurement method: oscillometric Measurement range: pressure: 30 ~ 280 mmHg, pulse: 40 ~ 200 beats / minute Measurement accuracy: pressure: 3 mmHg, pulse: 5% Max. Heart arrhythmia recognition function The indicator of the classification of the pressure measurement result according to WHO (World Health Organization) World health organization Liquid crystal display Memory: 120 measurements x 2 users (240 measurements) Device dimensions: L x W x H: 83 x 74 x 31 mm (3.27 x 2.91 x 1.22 inches) Unit weight: 153 5 g (18.24 0.17 oz) (including batteries) Cuff Size: 135 ~ 195mm (5.3 ~ 7.7 inch) Storage / Transport Conditions: Temperature: -10 ~ 50 ° C (-14 ~ 131 ° F), Humidity: 90% R. H. Working environment: temperature: 10 ~ 40 ° C (50 ~ 104 ° F), humidity: 10% ~ 95% R. H. Power supply: 2 AAA alkaline batteries (1.5V) Battery life: approx. 250 measurements Accessories: user manual, 2 AA alkaline batteries Manufactured in accordance with international standards: ISO, MDD, CE Battery saving - the camera automatically turns off after 3 minutes Warranty: 24 months Saving battery - the camera automatically turns off after 3 minutes liquid crystal display 135 - 195 mm - User manual - 2 AA alkaline batteries 83 x 74 x 31 mm Storage/transport conditions: - Temperature: -10 ~ 50°C (-14 ~ 131°F) - Humidity: 90% R. H. Working environment: - Temperature: 10 ~ 40°C (50 ~ 104°F) - Humidity: 10% ~ 95% R. H. - World Health Organization WHO (WHO) classification of the WHO score (World Health Organization) - Manufactured in accordance with international standards: ISO, MDD, CE - Battery life: approx. 250 measurements