Overview: 
1）2.5 Mhz Waterproof probe
High sensitivity of the probe, 12~16weeks can hear fetal heartbeat .
2）LCD digital screen
Light screen , the digital display is more clearer .
3) Two model shows
Press 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.
 
 Specification:
 
  
   
    
Probe frequency
   
   
    
2.5 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 wonrsquot send )
   
  
 
 
 Packing Content: 
1*Monitor