The washable T-shirt, contains a series of electrodes that measure and record bioelectrical activity, the system also includes a removable thermometer and accelerometer that measures temperature and movement, and a separate positioning device that allows doctors and nurses to keep track of where patients are. See http://www.fastcompany.com/1782989/a-smarter-t-shirt-to-monitor-your-vital-signs-and-take-all-those-wires-off-your-chest