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The YELLOW JACKET 69217 is a Type K clamp-on temperature probe designed for HVAC technicians who need accurate surface temperature readings on refrigerant lines, pipes, and similar round surfaces. The clamp jaw accommodates pipe diameters up to 1.375 inches, allowing a secure, repeatable contact on common line sizes encountered in residential and light commercial work. Maximum temperature rating is 248 degrees F (120 degrees C), and the probe delivers a 3-second response time so readings stabilize quickly during service calls. The 10-foot cable provides enough reach to keep the meter away from tight mechanical spaces while taking measurements.
This probe is used in HVAC and refrigeration service work where contact surface temperature measurement is required. Typical applications include superheat and subcooling measurements on refrigerant lines, pipe temperature verification after brazing cool-down, and general mechanical system diagnostics. The clamp-on design keeps hands free and eliminates the need to hold the probe against the surface during reading. It is appropriate for residential split systems, package units, and light commercial refrigeration equipment where pipe sizes fall within the jaw range.
Designed for use with Type K thermocouple-input instruments, including compatible YELLOW JACKET meters and other standard Type K-input digital thermometers and manifold gauges that accept clamp-on probe accessories.
HVAC technicians install this probe by securing the clamp jaw firmly against the pipe surface to ensure full contact for accurate readings. Ensure the pipe surface is clean and free of heavy oxidation or insulation debris before clamping. The probe is a measurement accessory, not a wired component, so no electrical lockout is required, but standard refrigerant safety practices apply when working on live refrigeration circuits. Avoid exceeding the 248 degrees F maximum temperature rating to prevent probe damage.
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