Cheap Cost muti-funtional heart rate watch circuit plate

Product Description

Description: 
this electronic chip design for multi-funtional heart rate watches
1.Six mode :normal time mode,alarm clock mode ,stop-watch mode ,countdown mode ,DT time        mode , heart rate test mode.
2.Four key operation ,el : press it when you feel dark , the display become lightande effect is        better ；mode : change orthers mode ；set : select which time you want to adjust ; up : start      or stop timer,even set up alam clock as quickly .
3.Under normal time mode which display contains  day of week , hour , minute, second , day ,      month , 
4.Integral point announce
5.Heart rate mode: getting through touch wrist to test, screen show shpygmus frequency
6.Low voltage:3V
7. No language barrier, the use of the global general graphics and elements, can rest assured     that all countries in the world 
8. The function is simple and practical, no exaggerated useless function, convenient operation      experience better