Thermocouples

Honeywell Thermocouples are sold in four sizes. These sizes include 24", 30", 36", & 48". Honeywell Thermocouples are the industry standard.

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  • 24" Thermocouple View Specs
    • SKU: Q390A1046
    • Brand: Honeywell
    In Stock!
    199 Avail (Ships in 24-48 Hrs)

    $3.50 / each

    $33.90 / box
    10 x $3.39

     
  • 30" Thermocouple View Specs
    • SKU: Q390A1053
    • Brand: Honeywell
    In Stock!
    111 Avail (Ships in 24-48 Hrs)

    $3.76 / each

    $36.50 / box
    10 x $3.65

     
  • 18" Thermocouple View Specs
    • SKU: Q390A1095
    • Brand: Honeywell
    In Stock!
    66 Avail (Ships in 24-48 Hrs)

    $3.54 / each

    $33.80 / box
    10 x $3.38

     
  • 36" Thermocouple View Specs
    • SKU: Q390A1061
    • Brand: Honeywell
    In Stock!
    160 Avail (Ships in 24-48 Hrs)

    $4.19 / each

    $40.90 / box
    10 x $4.09

     
  • 48" Thermocouple View Specs
    • SKU: Q390A1103
    • Brand: Honeywell
    In Stock!
    104 Avail (Ships in 24-48 Hrs)

    $4.75 / each

    $44.50 / box
    10 x $4.45

     
  • 18" Thermocouple with maximum copel View Specs
    • SKU: Q340A1066
    • Brand: Honeywell
    In Stock!
    77 Avail (Ships in 24-48 Hrs)

    $6.15 / each

     
  • 24" Thermocouple with maximum copel View Specs
    • SKU: Q340A1074
    • Brand: Honeywell
    In Stock!
    816 Avail (Ships in 24-48 Hrs)

    $6.35 / each

     
  • 30" Thermocouple with maximum copel View Specs
    • SKU: Q340A1082
    • Brand: Honeywell
    In Stock!
    285 Avail (Ships in 24-48 Hrs)

    $6.70 / each

     
  • 36" Thermocouple with maximum copel View Specs
    • SKU: Q340A1090
    • Brand: Honeywell
    In Stock!
    852 Avail (Ships in 24-48 Hrs)

    $6.95 / each

    $25.56 / box
    4 x $6.39

     
  • 48" Thermocouple with maximum copel View Specs
    • SKU: Q340A1108
    • Brand: Honeywell
    In Stock!
    149 Avail (Ships in 24-48 Hrs)

    $7.65 / each

     
  • 36" Junction Block Thermocouple w/ Energy Cut-Off View Specs
    • SKU: H06F-36
    • Brand: White Rodgers
    In Stock!
    25 Avail (Ships in 24-48 Hrs)

    $12.95 / each

     
  • 48" Vertical Pilot Couple View Specs
    • SKU: PCA50TL014L48
    • Brand: White Rodgers
    Usually Ships 7-10 Days

    $84.95 / each

     
  • 18" Universal Replacement Thermocouple View Specs
    • SKU: H06E-18
    • Brand: White Rodgers
    In Stock!
    61 Avail (Ships in 24-48 Hrs)

    $4.15 / each

     
  • 48" Horizontal Pilot Couple View Specs
    • SKU: PCB50TL014L48
    • Brand: White Rodgers
    In Stock!
    7 Avail (Ships in 24-48 Hrs)

    $84.95 / each

     
  • 24" Universal Replacement Thermocouple View Specs
    • SKU: H06E-24
    • Brand: White Rodgers
    In Stock!
    142 Avail (Ships in 24-48 Hrs)

    $4.85 / each

     
  • 35" Thermopile Generator (750 mV) View Specs
    • SKU: Q313A1022
    • Brand: Honeywell
    In Stock!
    10 Avail (Ships in 24-48 Hrs)

    $37.35 / each

     
  • 30" Universal Replacement Thermocouple View Specs
    • SKU: H06E-30
    • Brand: White Rodgers
    In Stock!
    48 Avail (Ships in 24-48 Hrs)

    $4.45 / each

     
  • 35" Thermopile Generator w/ PG9 Adapter (750 mV) View Specs
    • SKU: Q313A1170
    • Brand: Honeywell
    In Stock!
    70 Avail (Ships in 24-48 Hrs)

    $38.95 / each

     
  • 36" Universal Replacement Thermocouple View Specs
    • SKU: H06E-36
    • Brand: White Rodgers
    In Stock!
    44 Avail (Ships in 24-48 Hrs)

    $5.15 / each

     
  • 35" Thermopile Generator w/ Push-in clip & 1/2" Thermopile Attaching Nut (750 mV) View Specs
    • SKU: Q313A1188
    • Brand: Honeywell
    In Stock!
    87 Avail (Ships in 24-48 Hrs)

    $32.65 / each

     

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More About Thermocouples

A thermocouple senses temperature at a pilot burner. The thermocouple determines if the main flame is hot and safe enough to ignite natural gas or propane to the burner. A thermocouple consists of two different metals joined together at one end. This unique bond of metals produces a small voltage at a given temperature.

Honeywell, the leading manufacturer in thermocouples, produces a standard thermocouple as well as a thermocouple with maximum copel. Copel is an alloy of copper and nickel. A thermocouple with a higher amount of copel will have a longer life span than a standard thermocouple. Honeywell thermocouples are available in lengths of 18", 24", 30", 36", and 48".

Robertshaw is known for its Uni-Couple thermocouple Series. The unique design of the Uni-Couple allows for installation to almost all pilot burners. The design includes a stainless steel tip which provides longer life, copper tubing for corrosion protection and low electrical resistance, and an extended cold junction for greater voltage output. Uni-Couples are available in lengths of 18", 24", 30", 36", 48", 60" and 72" making them an extremely versatile option.

The Snap-Fit Thermocouple is an additional series of thermocouples by Robertshaw. Thermocouples in this series don't need complicated adapters to adapt to most pilot burners, making installation simple. Snap-Fit Thermocouples are available in lengths of 12", 18", 24", 30", 36", 48", 60" and 72".

A thermopile generator consists of multiple thermocouples linked in a series to increase millivoltage output. Sufficient power is generated and can operate an automatic millivolt gas control system, independent from any exterior power source. Thermopile generators are available in a variety of lead lengths and connection types, making them cost effective and resourceful.

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