PORTABLE WIRELESS ALARM

摘要

A portable radio frequency device that transmits alarm signals when subjecte d to tilt, motion, or shock. One or more sensors are utilized to produce electrical signals that a re representative of applied tilt, motion, shock, or vibration. These electrical impulses are processed by way of electronic circuitry to produce the desired alarm signal. This alarm signal is used to key a radio frequency transmitter, which is then sensed by a remote electronic receiver.