FL601 Video Baby Monitor, Night Vision, Two Way Talk more The 4 MHz as a

The 4 MHz as a vascular probe with the lowest frequency features the deepest penetration level and best suits for examining blood vessels

Note: FHR measurement result may not be accurate if the equipment is measuring beyond its measuring range

such as angled probe placement and the depth of the fetal heart

It will work very well through most full-term pregnancies

Three Working Modes: Mode 1: A heart icon is displayed when the heartbeat is detected and the real-time heart rate is displayed numerically

FL601 Video Baby Monitor, Night Vision, Two Way Talk more The 4 MHz as a2 Way Talk; talkback system, High contrast 2. 0 color LCD monitor, Built in 8 lullabies in the camera Temperature monitoring Automatic night vision, Night Vision Distance : 15 FT (5m) Wireless Range : up to 260m,Secure, interference free, long range digital signal Built in lullabies may help the parent comfort the baby fall into a sleep.