... (Ultrasonic Channel I), FHR2 (Ultrasonic Channel II),TOCO, FMOV (Fetal Movement Marker) Feature:HM-800G Fetal Monitor can provide different configurations ... according to different user requirements: FHR1(Ultrasonic Channel I), FHR2 (Ultrasonic Channel II ... pregnant women) Optional:Twins monitoring ultrasound probe FHR2 HM-800G Fetal Monitor