This Digital Arm Cuff Blood Pressure Monitor can be conveniently used at home. It? s a good tool to keep in touch with your health. Super easy to use and seems to be very accurate. It is also a good present for your parents. Digital Wrist Blood pressure monitor with Memory Function small, portable, easy to use, also this Blood pressure monitor almost for all people own using. With this Blood pressure monitor, you can simply check the blood pressure as a tool for self-popular hypertension. Features Display LCD screen Measurement method Pulse scan method Measurement scope Blood pressure Pressure increasing Automatical Pressure decreasing Automatical Pressure sensitivity Semiconductor pressure sensor Exhaust Automatical Accuracy : Blood pressure: +/-3mm Hg Pulse:+/- 5% ErrorPulse: Record below 5% error Size: 7 x 7 x 2 cm Operation temperature: -10? - +40? Store temperature: -20?- +50? Measurement scope: 135-195mmcycle Method of use