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Dayton

Dayton 36GK69 Thermocouple Probe Type J 18 in

SKU CH-BG4K-CZA7Y

Type J thermocouple probe with mini plug measures air, gas or liquid from -346 °F to 2,913 °F using an 18-inch grounded sensor

  • ColorTransparent
  • Type J thermocouple covers -346 °F to 2,913 °F for extreme temperature tasks
  • Grounded junction delivers fast response when measuring air gas or liquid media
  • 18 inch probe length reaches deep into ducts vessels or equipment
  • 1/8 inch diameter fits tight ports with 1/4 in and 1/8 in MNPT threads
  • Mini plug connector enables quick hookup to compatible meters or controllers

Dayton Type J Thermocouple Probe

The Dayton 36GK69 is a grounded Type J thermocouple probe designed for measuring air, gas or liquid temperatures in HVAC and industrial systems. Its 18-inch probe length and mini plug make it suitable for technicians who need a direct immersion sensor with a compact connector.

Transparent sheath with 1/8 and 1/4 inch MNPT

The transparent probe body lets users visually confirm placement while the dual 1/8-inch and 1/4-inch male NPT threads allow direct installation into standard pipe ports without extra adapters. The 18-inch cable terminates in a mini plug that mates with compatible instruments, keeping the connection secure in vibration-prone environments.

Operating range from -346 °F to 2,913 °F

The Type J element covers -346 °F to 2,913 °F (-210 °C to 1,200 °C), so the probe handles cryogenic liquids through high-temperature process streams without changing sensors. Grounded junction construction gives fast thermal response, while the rugged sheath resists mechanical stress during routine maintenance cycles.

Highlights

  • Type J thermocouple covers -346 °F to 2,913 °F for extreme temperature tasks
  • Grounded junction delivers fast response when measuring air gas or liquid media
  • 18 inch probe length reaches deep into ducts vessels or equipment
  • 1/8 inch diameter fits tight ports with 1/4 in and 1/8 in MNPT threads
  • Mini plug connector enables quick hookup to compatible meters or controllers

Specifications

BrandDAYTON
ColorTransparent

Questions about this item

What temperature range does the Type J thermocouple cover?

The probe measures from -346 °F to 2,913 °F, which is -210 °C to 1,200 °C, suitable for air, gas or liquid applications.

What thread size is needed to mount the 1/8 in probe?

The probe has a 1/4 in MNPT fitting and a 1/8 in MNPT fitting; choose the matching female port for the connection you need.

How is the mini plug connected to the instrument?

Push the mini plug fully into the instrument jack until it clicks; a loose seat causes noisy or erratic readings.

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