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The FLUKE 80PJ-EXT is a thermocouple extension wire kit designed for use with J-type thermometers. The kit extends the reach between a J-type thermocouple probe and its measuring instrument without introducing signal error. It includes one pair of male or female mini-connectors and 3 meters of J-type thermocouple wire, giving technicians added flexibility during temperature measurement tasks. HVAC technicians and instrumentation specialists use this kit when probe lead length is insufficient for the application. Weighing 0.1 pounds, it is lightweight and easy to carry in a service bag.
This extension wire kit is suited for field and bench applications where a J-type thermocouple thermometer is used to measure surface, air, or equipment temperatures. Common use cases include HVAC equipment diagnostics, industrial process monitoring, and lab or calibration work where the thermocouple sensor must be positioned at a distance from the meter. The included mini-connectors maintain polarity and signal integrity across the extension length.
Designed for use with J-type thermocouple thermometers and compatible J-type instrumentation that accepts standard mini-connector terminations.
Installation is performed by instrumentation technicians or HVAC service professionals. Before connecting or disconnecting the extension wire, ensure the thermocouple meter is powered off. Align the mini-connectors correctly by polarity before seating them to avoid signal reversal. Do not splice or modify the thermocouple wire, as this can introduce measurement error.
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