Armband to detect patient’s temperature

A flexible armband has been developed that sounds an alarm when the wearer runs a temperature. The self-powered “fever alarm” provides an audible warning when a thermal sensor detects a pre-set body temperature of 36.5 to 38.5C.

Normal body temperature varies but on average is around 37C. The new device designed by Japanese engineers combines a flexible silicon solar panel, piezoelectric speaker, temperature sensor and organic power supply circuit.