A temperature sensing and indicating device, comprising a housing, a microprocessor and an arm. The arm is retractable and extendible into and out of the housing, such that the length of the arm external to the housing can be varied in a predetermined manner. A probe having a temperature sensor therewithin...http://www.google.co.uk/patents/US6000845?utm_source=gb-gplus-sharePatent US6000845 - Temperature sensing and indicating device
