Heart Rate Sensor

Board diameter: 16mm

Board thickness: 1.6mm (common PCB thickness)

LED peak wavelength: 515nm

Supply voltage: 3.3v or 5v

Output signal type: analogue signal

Output signal size: 0~3.3v (3.3v power supply) or 0~5v (5v power supply)

Current size: ~4ma (5V)