KY-039 Finger Detection Heartbeat Measuring Sensor Module

This component is ideally suited to adding heartbeat sensing to your project. KY-039  uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. 

Technical Specification:

• Chipset: KY-039
• Voltage Input: 3V - 5V
• Size: 16mm*19mm*6mm (L*W*H)

Features:

• Use IR LED and an optical transistor to detect pulsation in fingers
• Small and Compact module
• Easy to use

Applications:          

• Medical
• Home lightning