LCD can display FHR, synchronous FHR signal, battery indicator, volume of sound and alarm indicator accurately;

Built-in rechargeable battery can work continuously more than 5 hours;

TFT LCD display for use conveniently at night;

4 modes count the FHR: Average, Auto, Manual and Instant;

Automatic power off ( one minute), self-detect function, and alarm function when FHR is out of the normal range or battery power is in shortage;

Standard: 2HMZ probe

packing: 
Single Unit Dimension:   24 x 23 x 12cm                          
G W: 1.5kg
20 pcs/Per case
size:  44 x 36 x 42cm                  
G W: 18kg

Lead time: within 3-4 weeks