6.Low battery and error information indication.
7.4kPa(±3 mmHg) PR measurement range:40bpm~240bpm Inflation:automatic inflation by force pump Deflation:automatic multistep deflation Display:LED large color screen Power:Four AA batteries/5V Power adapter Safety character:Class II Type BF Physical characteristic Dimension:130mm(L)Ã110mm(W)Ã80mm(H) Operation environmentï¼ Temperature:+5°C~+40°C Relative humidity:15%-85% Atmospheric pressure :700hPa~1060hPa Storage environment: Temperature:-20°C~+55°C Relative humidity:â¤95% Atmospheric pressure:700hPa~1060hP Accessories Cuff for adult User manual Arm Blood Pressure Monitor Automatic Digital Machine Adult Cuff sphygmomanometer Dimensions: 80.