H10-3 pocket fetal doppler ( lcd display ) It's used for detecting the fetal heart rate(fhr) at hospital, clinic, family. Easy to use Lcd display Built-in speaker Blue backlight Audio output Automatic switch-off Real-time and average Battery energy indication Sound alarm function when fhr is out of the normal range Multi-colour of main Specification: Ultrasonic frequency: 2.5 mhz Dimensionú¦100(l)* 30(w)* 135(h)mm Weight : 0.5kg Continuous work time: 8 hours
