Measuring Method : Oscillometric System Fully automatic, accuracy and reliable. Systolic, diastolic and heart rate measurement. Large LCD, jumbo size digit and one-touch button. 10 Memories. 1.5min. auto power off, power saving function. Intelligence voice system( Option). Range : Pressure:0~300mmHg; Pulse:40~ 200/min. Accuracy : Pressure ±3 mmHg; Pulse ±5% Working temp. & Humidity : 5 ~ 40’, 30 ~ 85% RH Storage temp. & Humidity : -20 ~ 60’, 10 ~ 95% RH Dimensions : 64(W) X 73 (D) X 29(H) mm Weight : Approx. 114g Accessories : Wrist Cuff, Instruction Manual Place of Origin : Made in China Lead Time : 40 ~ 45 days Dimensions : 64(W) X 73 (D) X 29(H) mm Weight : Approx. 114g.