Cooper Atkins 39138-K Type K Air Temperature Probe

Cooper Atkins 39138-K Type K Air Probe

The Cooper Atkins 39138-K is a Type K thermocouple designed to measure air and gas temperatures. It covers a range of -328 to 400 degrees Fahrenheit or -200 to 205 degrees Celsius. The probe uses a bare wire tip and a gray sheath for direct exposure to the measured medium. It suits technicians who need a dedicated air sensor for HVAC, automotive or industrial testing.

Suits users needing a long-reach air sensor

This probe suits users who must insert the sensor deep into ductwork or equipment because the probe length is 36 inches. The 3/16 inch diameter allows entry through small ports. Buyers who require a surface contact probe, an immersion probe for liquids, or a sensor with a handle and plug should look at a different style because this unit is a bare wire air probe only.

Simple connection to Type K instruments

Installation requires plugging the bare wire leads into a compatible Type K thermometer or data logger; no special tools are needed. The 36 inch cable provides routing flexibility but can snag on sharp edges if not secured. The most common issue is reversed polarity on the thermocouple terminals, which causes the reading to move opposite to the actual temperature change.