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وصف
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/33ddfcecd4.jpg)
Our product has unique electronic compression depth and frequency detector.
1. First right operation: the 4 indicate light on the left shoulder will be on.
2. the lights off: lack of battery or operation mistake
3. when start the operation, yellow and green light will be off
4. red light: Press frequency 0-60 beats/min
Yellow light: Press frequency 60-80 beats/min
Green light: Press frequency 80-100 beats/min
1)right operation: 2 green lights on Press frequency >100 beats/min
2)red light flashing:compression depth insufficient
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/fffed61b01.jpg)
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/3a8eb9b5f9.jpg)
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/563c087c71.jpg)
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/fd2e5b217d.jpg)
![](http://ueeshop.ly200-cdn.com/u_file/UPAP/UPAP291/2209/photo/75a6adfd2a.jpg)
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