Brand N/A Model pulsesensor Quantity 1 Color Black + white Material CCL Specification Arduino pulse sensor is used to test the heart rate sensor students artists athletes creators games or mobile terminal developers can develop and heart-related interactive work; Sensors can be worn on the finger or earlobe through the interconnect lines can be connected with the Arduino; It also has an open-source app program you can put your heart rate in real time using graph displayed; Substance is an integrated amplifier and noise elimination circuit optical heart rate sensor; Power supply: 3V or 5V English Manual/Spec Yes Packing List 1 x Pulse heart rate sensor