Type E PFA Insulated Thermocouple Wire 24 Gage Solid Temperature range of PFA insulation -392 to 500°F (-200 to 260°) Type E thermocouple bare wire has a temperature range of -418 to 1652°F (-250 to 900°C) Bare Wire construction - the 2 bare wires are solid .020" diameter made from highly accurate SLE grade Type E thermocouple alloys with the positive nickel chrome wire and negative constantan wire Insulated Wire construction - the wires are parallel to each other individual insulated with .008" thick PFA coating and a 0.10" outside PFA jacket with 500°F (260°C) rating. The overall jacket measures .056" x .092" ANSI Color code with a purple positive wire and Red negative wire. The overall jacket is Brown EvoSensors part number: E1X-PFXX-24G-( )FT - enter length required in standard offering of 25, 50, 100, 200, 500 and 1000ft