5pcs/lot Finger Measuring Heartbeat Sensor Module for Arduin

Type:Voltage Regulator Condition:New Application:Computer Supply Voltage:1 Dissipation Power:1 is_customized:Yes Item Description This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed. Package Including: 5pcs Finger Measuring Heartbeat Sensor Module for Arduin Unit Type:lot (5 pieces/lot) Package Weight:0.01kg (0.02lb.) Package Size:5cm x 5cm x 5cm (1.97in x 1.97in x 1.97in)