What is a thermocouple? A thermocouple is a temperature sensor that measure temperature by generating a small voltage signal proportional to the temperature difference between the junctions of two dissimilar metals. One junction (the hot junction) is typically encased in a sensor probe at the point of measurement; the other junction (the cold junction) is connected to the measuring instrument. The measurement instrument measures the voltage signal and the cold junction temperature then computes the temperature.

Precautions and considerations for using thermocouples:
Most measurement problems and errors with thermocouples are due to a lack of understanding of how thermocouples work. Listed below are some of the common problems. Connection problems: Many measurement errors are caused by unintentional thermocouple junctions. Remember that any junction of two different metals will cause a junction. If you need to increase the length of wires from your thermocouple, you must use the correct type of thermocouple extension wire. Using the wrong wire will introduce a thermocouple junction. Any connectors used must be made from the correct thermocouple material and correct polarity must be observed. Lead Resistance: To minimize thermal shunting and improve response time, thermocouples are made from thinner wire. Remember that thinner wire will cause high resistance which can make it sensitive to noise and can cause errors due to the input impedance of the measuring instrument. Using twisted thermocouple wires will help to reduced the noises. Thermocouple probes and assemblies: Make sure to select proper materials for each application and operating temperature. Remember when ordering thermocouple probes, that the thicker the sheath or insulated material the slower the respond time. Junction types : Make sure to select proper thermocouple junction type and sheath size to improve respond time. For more info.

Maximum probe length offer 120" long

T1-KM-D4-L12-304-GRT-GG Thermocouple probe sensor type K grounded with standard male plug and special limit of error wire and SS316 protection sheath. 12" Long, 1/4" O.D.

T1-KCM-D4-L12-316-GRT-MI Thermocouple probe sensor type K grounded with standard male ceramic plug and special limit of error MgO mineral insulated c/w SS316 protection sheath. 12" Long, 1/4" O.D.

 

T1-JM-D4-L12-304-GRT-GG

 

$20

CAD

 

 

$40

 

 

 

$20

T2-MJM-D4-L12-304-GRT-GG thermocouple probe sensor type J with mini flat pins male plug and SLE TC elements with SS316 protection sheath. 12" long, 3/16" O.D. & grounded

T2-MKM-D4-L12-304-GRT-GG with type K mini plug

10pk/$180.00

Reg.

$25

$20

 

T3-KF-D4-L12-304-GRT-GG type K TC with standard female jack and SLE TC elements with SS316 protection sheath. 12" long and 1/4" O.D. & grounded

T3-JF-D4-L12-304-GRT-GG

T3-TF-D4-L12-304-GRT-GG

10pk/$180.00

Reg.

$25

$20

 

T4-MJF-D4-L12-304-GRT-GG type J sensor probe with mini flat pins female jack and SLE TC elements with SS316 protection sheath. 12" long, 3/16" O.D. and grounded.

T4-MKF-D4-L12-304-GRT-GG with type K mini female jack

10pk/$180.00

Reg.

$25

$20

T5-JM-D4-L12-304-GRT-GG temperature probe type J with standard male plug and SLE TC elements with SS316 protection sheath supported by compression fitting. 12" long, 1/4" O.D. & grounded.

T5-KM-D4-L12-304-GRT-GG with type K plug

T5-MJM-D4-L12-304-GRT-GG with type J mini plug

T5-MKM-D4-L12-304-GRT-GG with type K mini plug

10pk/$200.00

Reg.

$30

$23

 

T6-JF-D4-L12-304-GRT-GG temperature probe type J with standard female plug and SLE TC elements with SS316 protection sheath supported by compression fitting. 12" long, 1/4" O.D. & grounded.

T6-KF-D4-L12-304-GRT-GG with type K jack

T6-MJM-D4-L12-304-GRT-GG with type J mini jack

T6-MKM-D4-L12-304-GRT-GG with type K mini jack

10pk/$200.00

Reg.

$30

$23

T7-HJM-D4-L12-304-GRT-GG sensor type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by compression fitting. 12" long, 1/4" O.D. & grounded.

T7-HJF-D4-L12-304-GRT-GG with female J jack

T7-HKM-D4-L12-304-GRT-GG with K male plug

T7-HKF-D4-L12-304-GRT-GG with K female jack

10pk/$250.00

Reg.

$40

$28

 

T7-HJM-D4-L12-304-GRT-GG-12SB type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by compression fitting and brazed SS316 hex bushing. 12" long, 1/4" O.D. & grounded.

T7-HKM-D4-L12-304-GRT-GG-12SB with type K male plug

T7-HJF-D4-L12-304-GRT-GG-12SB with type J female plug

T7-HKF-D4-L12-304-GRT-GG-12SB with type K female plug

10pk/$360.00

Reg.

$55

$40

T7-HJM-D4-L12-304-GRT-GG-12SSC2 1/4" O.D. by 12" long type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by heavy duty 1/2" NPT compression fitting.

T7-HJM-D4-L12-304-GRT-GG-34SSC2 1/4" O.D. by 12" long type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by heavy duty 3/4" NPT compression fitting.

 

10pk/$420.00

10pk/$360.00

Reg.

$85

$45

 

 

$40

 

 

T7-HJM-D4-L12-304-GRT-GG-FL 1/4" O.D. by 12" long probe type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by SS316 compression flange.

10pk/$720.00

Flange details

Reg.

$95

$80.00

TM-JM-D4-L4-304-GRT-GG

On/Off Magnetic held down thermocouple designed for round or flat mounting surfaces. Spring loaded c/w sensor probe. Low temperature applications.

Reg.$95.00$85.00
 
TM2

Magnetic temperature sensor completed with 3ft. stainless steel braided cable. SLE J, K, T cable.

 

$35.00

TW-J-D4-L6-304-GRT-GG-3FTSSB

Stainless steel washer flange 1/8" thick x 1 1/8" O.D. with two mounting holes. 1/4" O.D. by 6" long probe with 1 feet of stainless steel braided over cable. Grounded with fibreglass insulation. Available in type J, K, T

10pk/$250.00

$28.00

TA-K-D6-L6-304-UEXP-CER Type K probe sensor with 6 feet of SLE cable and 3/8" O.D. by 6" long SS304 protection sheath. Alumina ceramic insulation. Ungrounded exposed to air with grill opening. Designed for air measurement.

$30.00

10pk/

$270.00

 

T12L-K-D3-L12-304-GRT-GG

3/16" O.D. x 12" long thermocouple probe type K with spring transition type and fiberglass insulation wire. Grounded

T12L-K-D3-L12-316-GRT-MI

3/16" O.D. thermocouple probe type K mineral insulated, grounded, transition to 6ft of fibreglass cable.

10pk/-20%

10pk/-20%

Reg.

$65

$35.00

 

 

 

$50.00

T7-HJM-D4-L12-304-GRT-GG-18SSC1 type J with heavy duty male plug and SLE TC elements with SS316 protection sheath supported by compression fitting and 1/8" NPT adjustable compression fitting. 12" long, 1/4" O.D. & grounded.

10pk/$460.00

Reg.

$65

$50

 
T9-K-D4-L12-316-GRT-GG Type K with spring loaded Alumina ceramic terminal block and SLE TC elements with SS316 protection sheath. 12" long, 1/4" O.D. & grounded.

10pk/-20%

Reg.

$40

$30

 
T9-K-D4-L12-304-GRT-GG-12SB Type K with Alumina ceramic terminal block and SLE TC elements with SS316 protection sheath and brazed hex bushing. 12" long, 1/4" O.D. & grounded.

10pk/$360.00

Reg.

$65

$38

T9-K-D4-L12-304-GRT-GG-18SSC1 Type K TC with Alumina ceramic terminal block and SLE TC elements with SS304 protection sheath and 1/8 npt SS316 compression fitting. 12" long, 1/4" O.D. & grounded.

10pk/$360.00

Reg.

$65

$45

T10-K-D4-L12-304-GRT-GG-12N Replacement probe type K TC elements with fiberglass insulation and SS304 protection sheath, brazed one side and tig welded the other side. 12" long, 1/4" O.D. & grounded.

T10-K-D4-L12-316-GRT-MI-12N Replacement probe type K TC elements with mineral insulated and SS316 protection sheath, brazed to 12" long by 1/4" O.D. and grounded.

Available in 3/4" x 3/4" NPT

10pk/$340.00

10pk/$440.00

 

 

 

$35

 

 

 

 

$45

 

 

$35

 

T11-J-D4-L12-304-GRT-GG Type J straight probe sensor with 1 feet of SLE cable and 12" long SS304 protection sheath.

T11-K-D4-L12-304-GRT-GG with type K calibration

10pk/$160.00

Reg.

$25

$20

T12-J-D4-L12-304-GRT-GG Type J transition with 6 feet of SLE cable and 12" long SS304 protection sheath and spring. 12" long, 1/4" O.D. & grounded.

T12-K-D4-L12-304-GRT-GG with type K calibration

10pk/$360.00

Reg.

$45

$38

T13-J-D4-L12-304-GRT-GG-18SSC1 Type J with 6 feet of SLE cable and 12" long SS304 protection sheath and spring c/w compression SS304 fitting. 12" long, 1/4" O.D., grounded.

T13-J-D4-L12-304-GRT-GG-18SSC1-SSB With Stainless braid over wire

T13-J-D4-L12-304-GRT-GG-18BRC With Brass compression fitting

T13-J-D4-L12-304-GRT-GG-18SSC1-ARH With stainless steel flexible hose

10pk/$320.00

10pk/$344.00

$40

 

$43

 

$43

 

$43

T14-HJF-D4-L12-304-GRT-GG-6FTARH Type J with 6 feet stainless steel armor hose & SLE cable with female jack. 12" long, SS304 sheath, 1/4" O.D. & grounded.

T14-HKF-D4-L12-304-GRT-GG-6FTARH with type K calibration

10pk/$470.00

Reg.

$75

$50

T16-EXT-HJMF-6FTARH-304-GG-6FTARH with heavy duty plug

 

T16-EXT-JMF-6FTARH-304-GG-6FTARH with heavy duty plug & jack

10pk/$360.00

10pk/$380.00

$38

 

 

$40

T15-J-D4-L12-304-GRT-GG-6FTARH-14SB Type J TC with 6 feet stainless steel armor hose & SLE cable with SS304 hex bushing, 12" long, 1/4" O.D. & grounded.

T15-K-D4-L12-304-GRT-GG-6FTARH-14SB with type K calibration

10pk/$380.00

Reg.

$55

$40

 

T16-HJM-D1-L4-304-GRT-GG Flexible spring type J mineral insulated (MgO) transition & male plug, 6" SS304 protection sheath (grounded). Special limit of error. 1/16" O.D.

T16-EXT-HJF-6FTARH-304-GG-6FTARH with type J calibration and 6 feet of flexible SS304 armor hose.

$50

 

Reg.

$75

 

$30

T17-JM-L36-GRT-GG with a J male plug and 3 FT of cable fiberglass insulation wire.

T17-KM-L36-GRT-GG with a K male plug and 3 FT of cable.

10pk/$130.00

Reg.

$25

$15

T17-JJM-L36-GRT-GG type J with 2 male plugs and stainless steel braid, bayonet adapter cap, 3 feet SLE TC wires & spring and fiberglass insulation..

10pk/$235.00

Reg.

$30

$25

T18-J type J with stainless steel armour hose, bayonet adapter cap, 6 feet SLE TC wires wint fiberglass insulation.

T18-J-6FTSSB with stainless steel braid

T18-K-6FTARH with K calibration

T18-K-6FTSSB with stainless steel braid

T18-JM-6FTARH with J male plug

T18-KM-6FTARH with K male plug

T18-KF-6FTARH with K female plug

10pk/$210.00

10pk/$224.00

 

 

$25

 

 

 

 

 

 

 

$28

T19-J type J thermocouple, bayonet adapter cap, 6 feet SLE TC wires & spring loaded. 3/16" O.D. tip Fiberglass insulation.

T19-K with K calibration

 

T19-JM with J male plug

T19-KM with K male plug

T19-JFwith J female jack

T19-KF with K female jack

10pk/$120.00

10pk/$144.00

$15

 

 

 

 

 

 

$18

T20-J-L3.5-18TIP-GG 1/2-20 UNF 2A, 3.5" long Meltbolt type J TC c/w ceramic terminal block and 1/8" O.D. TIP, 1/4" long. Fibreglass insulation.

T20-K-L3.5-18TIP-GG with K calibration

T20-HJM-L3.5-18TIP-GG with J male plug

T20-HKM-L3.5-18TIP-GG with K male plug

 

T20-6FTARH-JM-L3.5-18TIP-GG with 6 ft of stainless steel armour hose and type J male plug

$60

 

 

 

 

 

 

$65

T21-HJF-L3.5-6FTARH-18TIP-GG SS304 3.5" long melt bolt, 1/2-20 UNF 2A thread, type J with 6 feet of stainless steel armor hose and heavy duty female jack with locking clip. 1/8" O.D. tip by 1/4" long. Special limit of error with fiberglass insulation.

T21-HJM-L3.5-6FTARH-18TIP-GG with type J heavy duty male plug

T21-HKF-L3.5-6FTARH-18TIP-GG with type K heavy duty female jack

T21-HKM-L3.5-6FTARH-18TIP-GG with type heavy duty K male plug

T21-KM-L3.5-6FTARH-18TIP-GG with standard K male plug

 

$75

 

 

 

 

 

 

$70

TPC22-K-GG-6ft

Pipe clamp type K thermocouple with 6 ft of special limit of error TC wire.

TPC-K-FEP-6ft

With Teflon insulated cable

TPC-K-GG-SSB-6ft

With stainless steel braided over fiberglass cable

TPC22-KM-GG-6ft

With type K male TC connector plug.

Pack of 10pcs -20%

$28

 

 

$30

 

$32

 

$30

 

TD-J-L12-D4-GRT-316 Dual TC type J Plug, grounded SS316 1/4" O.D. sheath 12" long probe

10pk/$435.00

Reg.

$55

$45

Simplex 2 WiresDuplex 4 WiresWire Calib.
JJJIron Constantan
KKKChromel Alumel
TTTCopper Constantan
Consult for other Calibrations
CodeSheath O.D.
D11/16"
D21/8"
D33/16"
D41/4"
D55/16"
D63/8"
D71/2"
Consult for other sizes
Code Probe Tube Length
L" L00 " Specify in inches
 
CodeTube Type
304Stainless Steel 304L
316Stainless Steel 316L
600Inconel 600
Consult for other type
CodeProbe Tip
GRTGrounded round tip
URTUngrounded round tip
GNTGrounded needle tip
UNTUngrounded needle tip
EXPExposed tip
  
  
 
CodeWire Insulation
GGFiberglass ~ 900°F
FEPFEP Teflon ~ 400°F
PFAPFA Teflon ~ 500°F
KAPKapton ~ 500°F
PVCPolyvinyl ~ 221°F
CERCeramic >815°C
MI

MgO, Mineral Insulated >815°C SS304, SS316

Alloy 600 1050°C

 
Code for SS316 NPT Compression FittingsCode for Brass Compression NPT FittingsCode for SS316 NPT Hex Bushings
18SSC1=1/818BRC=1/818SB=1/8
14SSC1=1/414BRC=1/414SB=1/4
38SSC1=3/838BRC=3/838SB=3/8
12SSC1=1/212BRC=1/212SB=1/2
12SSC2=1/2FL=Compression Flange
34SSC2=3/4Fitting details click here
 
CodeWire Protection
SSBStainless Steel Braid
ARHStainless S. Armour hose
 
CodeNPT Stainless Steel Nipples
14N1/4" NPT
12N1/2" NPT
34N3/4" NPT
T1KMD4L12316GRTGG
Sample part number

TP-K-L12-D4-GNT-316-6ft Industrial Penetration temperature sensor type K grounded SS316 1/4" O.D., 12" long, 6ft of telfon cable. c/w 1" O.D. teflon handle.

TP-K-L12-D4-UNT-316-6ft Ungrounded

TP-K-L12-D4-GNT-316-6ft-SSB with stainless steel Braid.

TP-K-L12-D4-GNT-316-6ft-ARH with stainless steel flexible hose.

$60.00

 

$62.00

$65.00

$65.00

Reg$85

 
+/-Zoom Photo

T33 $20

Reg.$28

T36 $20

T34 $20

Reg.$28

T37 $20

 

Reg.$35

$34.00

Reg$20

$10.00

30, 24, 20 GA SLE Bare Solid wire

Bare wires insulated with Alumina Ceramic is used for high temperature applications. Special limit of error bare thermocouple wires with 99.5% purity Alumina ceramic insulator beads. Fish Spine, oval and straight Insulators. 6" long type J, K, T

12" Long J, K, T $70.00 Pack of 10

SLC TC with 1/8" NPT Hex brass cap. 1" spring loaded. 3/16" sensing tip c/w 3 feet stainless steel braid and SLE wire.

 

SM Shim stock thermocouple. Brass or stainless steel shim with stainless steel braid. and 3ft of cable

 

SR TC with terminal ring c/w stainless steel braided and 3ft of cable

 

FR TC with flattened pipe terminal ring with stainless steel braided and. 3ft cable, grounded

 

$20.00

10pk/$170.00

 

$7.00

10pk/$60.00

 

 

$7.00

10pk/$60.00

 

$13.00

10pk/$110.00

T-GREASE

Silver thermal grease compound for heatsink (1.5g tube)

Color Silver


Silver Compounds 50%
Carbon Compounds: 30%
Metal Oxides: 20%
Thermal Conductivity >1,729 w/m-k at 25 degrees C
Thermal Resistance (Impedance) <0.120 degrees C-m2/w at25 degrees C
Operating Temp. -50 to 240 degrees C

$15.00
Tough design probe head dIICT6
Thermocouples

Thermocouple Sensors With Head

Thermocouple Accessories
Thermocouple Wire & MI_Cable
Temperature Transmitter
RTD Sensor Probes
Thermistor Probes
Temperature Controllers
Flexible Tubing
Heaters
Temperature & Humidity
Data Acquisition
Heater Plugs & Accessories

Contact us for thermowell probe assemblies

Type of Thermowells available

Stepped
Straight
Tapered
Weld-in
VanStone
flanged
Socket Weld
Limited Space
Sanitary

On/Off Magnetic helddown thermocouple designed for laboratory used with moveable arm. Adjustable angle and probe level. Can be used for round or flat mounting surfaces.

TM-JM-D4-L6-316-GRT-GG-ARM

Reg.98.00 $75.00

Without Magnet

T-JM-D4-L6-316-GRT-GG-ARM

Reg.68.00 $50.00

Terms & Conditions Toronto Ontario Canada