This is a 10 pack of Biomedical Sensor Pads, disposable electrodes that can be used to measure EEG, ECG and EMG levels.
HC-SR501 PIR Sensor
Heart Rate Pulse Sensor Module
This is the MyoWare Muscle Sensor, an Arduino-powered, all-in-one electromyography (EMG) sensor from Advancer Technologies.
normally closed vibration
This is your simple three conductor sensor cable with electrode pad leads.
SparkFun Single Lead Heart Rate Monitor is a cost-effective board used to measure the electrical activity of the heart.