features：
wireless probe can be paired with host
freely and instantly.
the probe and host can work continuously for more than 8 hours without external
power supply, probe working distance up to 10 meters.
real-time monitoring data can be uploaded to the central station.
printing reports through the central monitor station at any time.
patented fas(fetal acoustic stimulator) technology.
specifications:
display screen: 3.5 inch tft color lcd display
size: 202 * 189.2 * 75.9 mm
weight: 882.5g
probe ultrasound frequency: 1.0mh
fhr range: 50-210bpm
waterproof probe: ipx4