
A disaster alarm consisting of the combination of a small cardiac monitor, switching and signal coder controlling a transmitter which is actuated when high or low levels of a function such as heart rate are exceeded. The signal is picked up by a receiver which in turn is connected to an alarm system which continues to operate due to self-latching circuits until re-set. Two embodiments are shown one in which alarm signals only are transmitted in a pulsed or continuous fashion rather than the card...











