- Free shipping
- Free returns*
- Low prices
- 5 million products
Compatible with arduino heart rate sensor, heartbeat detection, health detection, with Gravity 3-Pin interface
Specifications:
- Model Number: custom
- Origin: CN(Origin)
- Supply Voltage: 3.3 - 6V
- Free shipping
We offer free shipping for all products
- Free returns*
If you aren't satisfied, you can return it
- Low prices
Up to 40% off, and new deals every week
- 5 million products
With over 5 million products, you are guaranteed to find something you like