?<div style="text-align: left;"><span style="font-family: georgia  palatino;"><img src="http://gdetail.image-gmkt.com/030/717423496/2016/5/0c9abe07-0f1b-4bdf-93ed-942311aec119.jpg" undefined="" width="940" height="1103"><br><br>Description:<br><br><br>It can be used by students  artists  makers  and developers who want live heart-rate data into their projects.<br><br>Color: Black<br>Material: FR4<br>English Manual / Spec: No<br>Voltage: 3V / 5V;<br>Amplification factor: 330;<br>Wavelength: 609nm;<br>A product for Arduino that works with official for Arduino boards<br><br>Package Included:<br>1 X pulse sensor<br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/5/692e2734-b78e-4710-8f27-cba86c6044ab.jpg" undefined="" width="800" height="601"><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/5/f050f639-c023-4dca-86a0-cbe7b02062ca.jpg" undefined="" width="798" height="792"><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/5/80256797-f8bf-4dc5-b5ef-02bcea93a505.jpg" undefined="" width="800" height="800"><br><br><br><br></span></div>