Temperature sensing and control is a critical requirement in applications like furnaces, boilers, HVAC and in industrial processes like chemical, petrochemical, oil & gas, and food processing/manufacturing.

Thermocouples are widely used in these applications for temperature sensing. They work on the principle of Seebeck effect, where two different metal wires are joined together, and this junction generates a voltage proportional to the temperature. The most common thermocouple types or thermocouple calibrations available are B, E, J, K, N, R, S, T & C. Each of these types have a specified temperature range in which they can be used. Thermocouples are available in various form factors like immersion probes, surface probes, air probes, bulkhead probes etc. Thermocouple wires, thermocouple extension wires and thermocouple connectors are important accessories that are used along with thermocouples.

Thermocouple wires are used to connect the sensor to the measuring instrument or temperature controller/transmitter. Thermocouple extension wires are used to extend the distance between the sensor and the measuring instrument or controller/transmitter. Thermocouple connectors are used to provide a secure and reliable connection between the thermocouple wires/extension wires and the measuring instruments. Thermocouple connectors are available in standard and miniature versions with 2-terminal connectors being the most used.

Application temperature, degree of accuracy in measurement, resistance to harsh environments, thermocouple wires, thermocouple extension wires and thermocouple connectors are the key factors based on which a thermocouple type is selected.

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Thermocouple Wire Type
Length
Thermocouple Type
Sensing Temperature Min
Outside Diameter
External Diameter
Length - Imperial
Measured Temperature Min
Measured Temperature Max
Sensing Temperature Max
Probe/Pocket Body Material
Length - Metric
Sensor Body Material
Response Time
Lead Length - Imperial
Operating Temperature Min
Wire Gauge
Operating Temperature Max
Lead Length - Metric
Probe Length - Imperial
Analogue Outputs
Probe Length - Metric
Probe Diameter - Imperial
Probe Diameter - Metric
Field of View (FOV)
Insulation
Emissivity
Thermocouple Termination
Thermocouple Wire Standard
Thermocouple Shielding
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ComparePrice ForQuantity
2443720

RoHS

Each
1+
HK$95.630
10+
HK$93.720
25+
HK$85.440
50+
HK$77.150
100+
HK$75.610
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-75°C
250°C
250°C
-
-
-
-
3.3ft
-
-
-
1m
-
-
-
-
-
-
PFA
-
Miniature Connector
IEC
Unshielded
Z2-K Series
2978154

RoHS

Pack of 5
1+
HK$2,332.070
5+
HK$2,285.430
10+
HK$2,238.790
25+
HK$2,192.150
50+
HK$2,145.500
More Pricing...
Min: 1 / Mult: 1
-
-
K
-
-
-
-
0°C
175°C
-
-
-
-
-
40"
-
-
-
1m
-
-
-
-
-
-
PFA
-
Stripped Leads
ANSI
Unshielded
SA1 Series
3410310

RoHS

Each
1+
HK$1,196.400
Min: 1 / Mult: 1
-
12"
K
-
-
-
-
0°C
480°C
-
-
-
Stainless Steel
-
60"
-
-
-
1.524m
-
-
-
0.5"
12.7mm
-
TPE
-
Miniature Connector
IEC
Unshielded
-
3815898

RoHS

Each
1+
HK$403.150
Min: 1 / Mult: 1
-
-
-
0°C
-
-
-
0°C
920°C
-
-
-
-
-
40"
-
-
-
1.02m
24"
-
609.6mm
0.062"
1.58mm
-
PFA
-
Stripped Leads
ANSI
Shielded
-
3795306

RoHS

Each
1+
HK$706.430
Min: 1 / Mult: 1
-
-
K
-
-
-
-
0°C
650°C
650°C
-
-
Stainless Steel
-
80"
-
-
-
2m
0.5"
-
12.7mm
0.25"
6.35mm
-
Fiberglass
-
Stripped Leads
-
Shielded
TC-NPT Series
3410319

RoHS

Pack of 5
1+
HK$1,417.460
Min: 1 / Mult: 1
-
-
K
0°C
-
-
-
0°C
482°C
-
-
-
Fibre Glass
-
-
-
-
-
-
6.6ft
-
2m
0.005"
0.13mm
-
Fiberglass
-
Stripped Leads
IEC
Unshielded
5TC Series
3410327

RoHS

Pack of 5
1+
HK$1,387.630
Min: 1 / Mult: 1
-
-
E, J, K, T
-
-
-
-
0°C
260°C
-
-
-
-
-
-
-
-
-
-
80"
-
2m
0.01"
0.25mm
-
PFA
-
Stripped Leads
IEC
Unshielded
5TC Series
3514811

RoHS

Each
1+
HK$305.100
5+
HK$291.950
10+
HK$263.920
25+
HK$248.810
50+
HK$240.110
More Pricing...
Min: 1 / Mult: 1
-
-
K
-60°C
-
-
-
-
-
-
-
-
Glass Fibre, Stainless Steel
-
-
-
-
-
2m
-
-
100mm
-
4.76mm
-
Glassfiber
-
Bare Wire
IEC
Shielded
-
7081625

RoHS

Each
1+
HK$285.790
5+
HK$269.040
10+
HK$252.250
Min: 1 / Mult: 1
-
-
K
0°C
-
-
-
-
-
+750°C
-
-
-
-
60"
-
-
-
1.5m
3.54"
-
90mm
0.158"
4mm
-
-
-
-
IEC
Shielded
-
2772010

RoHS

Each
1+
HK$324.100
5+
HK$305.090
10+
HK$286.070
Min: 1 / Mult: 1
-
-
K
-40°C
-
-
-
-
-
1100°C
-
-
Nickel Chromium Iron
-
3"
-
-
-
100mm
80"
-
2m
0.118"
3mm
-
PFA
-
Bare Wire
-
Shielded
-
2772039

RoHS

Each
1+
HK$330.320
10+
HK$320.390
20+
HK$310.830
Min: 1 / Mult: 1
-
-
T
-100°C
-
-
-
-
-
400°C
-
-
Stainless Steel
-
3"
-
-
-
100mm
6"
-
150mm
0.059"
1.5mm
-
PFA
-
Bare Wire
-
Shielded
-
2887303

RoHS

Each
1+
HK$327.910
5+
HK$322.910
10+
HK$317.920
50+
HK$286.270
Min: 1 / Mult: 1
-
150mm
J
-
-
6mm
-
-50°C
750°C
-
Stainless Steel
-
316 Stainless Steel
-
6.56ft
-
-
-
2m
5.9"
-
150mm
0.23"
6mm
-
PFA
-
Stripped Leads
IEC
Insulated
TPC
2772022

RoHS

Each
1+
HK$220.300
10+
HK$213.670
20+
HK$175.870
Min: 1 / Mult: 1
-
-
K
-40°C
-
-
-
-
-
1100°C
-
-
Stainless Steel
-
3"
-
-
-
100mm
9.84"
-
250mm
0.059"
1.5mm
-
PFA
-
Bare Wire
-
Shielded
-
3410329

RoHS

Pack of 5
1+
HK$615.190
Min: 1 / Mult: 1
-
-
T
0°C
-
-
-
0°C
200°C
200°C
-
-
PFA
-
-
-
-
-
-
3.3ft
-
1m
0.02"
0.51mm
-
PFA
-
Stripped Leads
IEC
Unshielded
5TC Series
3815546
Each
1+
HK$988.450
Min: 1 / Mult: 1
-
-
-
0°C
-
-
-
0°C
1150°C
1150°C
-
-
-
-
60"
-
-
-
1.5m
24"
-
609.6mm
0.25"
6.35mm
-
-
-
-
-
-
-
4294224

RoHS

Each
1+
HK$601.600
5+
HK$587.850
10+
HK$560.910
25+
HK$543.360
50+
HK$529.190
More Pricing...
Min: 1 / Mult: 1
-
-
K
-
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
7.87"
-
200mm
0.12"
3mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4294246

RoHS

Each
1+
HK$614.140
5+
HK$600.110
10+
HK$572.610
25+
HK$554.690
50+
HK$540.230
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
7.87"
-
200mm
0.24"
6mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4073380

RoHS

Each
1+
HK$187.340
5+
HK$177.380
10+
HK$167.410
Min: 1 / Mult: 1
T
-
T
-
-
-
32.8ft
-
-
-
-
10m
-
-
32.8ft
-
-
-
10m
-
-
-
-
-
-
PVC (Polyvinylchloride)
-
Miniature Connector
IEC
-
EXT Series
4318130

RoHS

Each
1+
HK$540.360
5+
HK$507.240
10+
HK$451.980
Min: 1 / Mult: 1
-
-
K
0°C
-
-
-
0°C
800°C
-
-
-
Inconel 600
-
3.281ft
-
-
-
1m
5.905"
-
150mm
0.059"
1.5mm
-
-
-
-
-
-
MPFA Series
4294225

RoHS

Each
1+
HK$608.500
5+
HK$594.600
10+
HK$567.350
25+
HK$549.600
50+
HK$535.270
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
1.97"
-
50mm
0.24"
6mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4294236

RoHS

Each
1+
HK$623.250
5+
HK$609.010
10+
HK$581.100
25+
HK$562.920
50+
HK$548.240
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
5.91"
-
150mm
0.24"
6mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4318142

RoHS

Each
1+
HK$581.940
5+
HK$546.330
10+
HK$486.730
Min: 1 / Mult: 1
-
-
K
-
-
-
-
0°C
800°C
-
-
-
310 Stainless Steel
-
6.562ft
-
-
-
2m
4.921ft
-
1.5m
0.118"
3mm
-
-
-
-
-
-
MPFA Series
4294219

RoHS

Each
1+
HK$624.490
5+
HK$610.220
10+
HK$582.260
25+
HK$564.040
50+
HK$549.330
More Pricing...
Min: 1 / Mult: 1
-
-
K
-
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
7.87"
-
200mm
0.24"
6mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4294234

RoHS

Each
1+
HK$608.500
5+
HK$594.600
10+
HK$567.350
25+
HK$549.600
50+
HK$535.270
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
1.97"
-
50mm
0.24"
6mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
4294239

RoHS

Each
1+
HK$594.970
5+
HK$581.380
10+
HK$554.730
25+
HK$537.380
50+
HK$523.360
More Pricing...
Min: 1 / Mult: 1
-
-
K
-75°C
-
-
-
-
-
250°C
-
-
316 Stainless Steel
-
3.3ft
-
-
-
1m
3.93"
-
100mm
0.12"
3mm
-
PFA
-
Bare Wire
IEC
Shielded
FAA-ISK Series
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