Product Features:
1.3.0 Mhz Waterproof probeHigh sensitivity of the probe, 12~16weeks can hear fetal heartbeat .
2.LCD digital screenLight screen , the digital display is more clearer .
3.Two model showsPress the left button , switch two model shows .
4.No radiation , After tested , Seldom no radiation .
5.Turn off automatically , No operation automatically turn down within 60S.
Product Specification:
Probe frequency:3.0 MHz plusmn10%
Error range:plusmn 2bpm
Rate display range:30-240bpm
Validity period:5 years
Size:130mm (L)*100mm(W) *36mm(H)
weight:250g
Battery:2*AA ( battery without )