Feature:High accuracy， intelligent automatic compression and decompression， 0~299mmHg measure rangeMeasure systolic， diastolic and pulse simultaneously (SYS/DIA/Pulse)Supports 60 groups memory of value and time3 minutes automatic power saving deviceSpecification:Measurement Method: Pulse ScanMeasuring Range: 0~299mmHg (Error: +/_3mmHg)Measurement Intervals: 1mmHGBlood Pressure: Record within 3mmHg or below 2% errorMeasurement Scope: 135~195mm cyclePulse: Record below 5% errorDisplay Type: LCD Screen (35*29mm)Display Content: Time / High Blood Pressure Value / Low Blood Pressure Value / Pulse Number (Heartbeat) / Memory StationRated Voltage: DC 3V， 1.5WMemory: Can store 60 groups of value and timePressure Increasing: AutomaticPressure Decreasing: AutomaticExhaust: AutomaticPressure Sensitivity: Semiconductor Pressure SensorOperation Temperature: -10~+40 Degree CStorage Temperature: -20~+50 Degree CPower Supply: 2 x AAA Battery (Not Included)Meter Size: 6.5 x 6.1 x 2.5cmNet Weight: 98Notice:Comply with the World Health Organization WHO and the International Association of Hypertension ISH blood pressure standard.Can not use for baby or people who can not be right to express their willing.Only for blood pressure measurement， not for other usage， and do not dismantle the device.Do not use mobile phone around the apparatus when measuring， or it will lead to operation error.Do not press start button to fill air before wristband is tied to the wrist.Do not clean it with benzene， gasoline or alcohol.Package Content:1 x Blood Pressure Monitor1 x User Manual