... Automatic power off Built in NI/MH rechargeable battery Indicator for Low battery capacity Technical Specifications ECG Input 3lead ECG cable ... : Manual, Auto, STATMeasurement interval in AUTO mode: 1,.3,5,10,15,20,30,60 (min)Measurement type: SYS, DIA, MEANResolution ... ,50Hz~60Hz,10VA Dimension 150mm×114mm×45mm Net weight 600g Wireless bluetooth fetal monitor with CE