An infrared temperature detecting transducer and warning system is mounted on a pan-tilt mechanism that allows the temperature monitoring transducer to stay focused on the portion of a body which is particularly intended for temperature measurement. The pan-tilt mechanism has adjustable limit switches...http://www.google.com.hk/patents/US5386831?utm_source=gb-gplus-share專利 US5386831 - Remote noninvasive patient temperature monitor and warning system
