1.automatic diagnosis 2 two years free upgrades of Software 3.Ultrasound frequency:3.0MHz 4.1ppm 5.working time 4 hours

Technical parameters:Display screen: 25mm×15mmUltrasound frequency:3.0MHzOutput intensity of ultrasound:<10Mw/cm2scope of  FHR measurement and display:40--220bpmAccuracy of FHR Measurement:1bpmPower of Voice Output:1WRanges of Voice Output Frequency:500dB--3000 dBWorking temperature:0--40Relative humidity:30%--80%Scope of Atmospheric pressure:70kPa--106kPaPower Supply: 9.6VNiMH rechargeable batteriesInput range of adapter: AC100V240V,50/60HzContinuous working time:>4 hours

TY188 Ultrasound fetal doppler