Patent ID: 7604399

Claim:
A temperature monitor for monitoring plural locations on a structure, said temperature monitor comprising: a sensor for receiving energy indicative of a temperature of a plurality of locations spaced from said sensor; a first member located between said sensor and said plurality of locations, said first member defining a first aperture comprising an elongated first slot; a second member located between said sensor and said plurality of locations, said second member defining a second aperture comprising an elongated second slot, said first and second slots defining directions of elongation transverse to each other; at least one of said first and second members being movable relative to the other of said first and second members to produce relative movement between said first and second apertures; and wherein said relative movement between said first and second apertures provides an unobstructed first line-of-sight through said first and second slots between said sensor and at least a first location of said plurality of locations, permitting said sensor to receive energy indicative of a temperature of said first location.