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This KY-039 Finger Detection Heartbeat Measuring Sensor Module uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger
High Sensitivity: IR Receiver Accurately detects infrared signals for reliable performance
Wire Lenght: 300mm
Features Of Cheap Version ArrduinoUnoR3 Programming Board Module:
Stable Performance: Ensures reliable operation in demanding environments
1 Inch 12v Dc Solenoid Valve Coil lithium ion battery charger board This KY-039 Finger Detection HeartbeatThe 1 Inch 12V DC Solenoid Valve Coil is high quality replacement part for use with pipelines in water, air and diesel applications. This product is designed to be highly convenient, allowing you to effortlessly open or close it with a simple power on and off. Experience the ease and efficiency of this product, making it an essential addition to your everyday routine. Specification of 1 Inch 12V DC Solenoid Valve Coil : Acting Motion : Direct action
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