Place of Origin : Guangzhou,China

1 Large colorized LCD display screen, big and clear data.
2 DSP technology , more advanced and makes measurement more accurate.
3 High quality and big power output, loud and clear sound.
4 Capacious and rechargeable battery, optional dry battery .
5 Real-time FHR and average FHR display in the same screen
6 With battery charge/power full/power shortage indication.
7 Automatically power off at set time.
8 FHR exceed alarming function.
9 Software can be upgraded and USB interfa