Request InfoEverest Interscience Inc.The Models 4000.4GL and 4000.4GH infrared temperature transducers from Everest Interscience Inc. provide precision temperature readings from 240 to +2200 °F. Housed in rugged stainless steel cases, these devices can withstand operating environment temperatures up to 160 °F without artificial cooling. Signal conditioning is done directly in the sensor head with no need for external electronics to provide usable outputs. 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