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Temperature Sensors & Transmitters

Temperature sensors and transmitters allow the monitoring, control, and even the measurement of temperature. At their most basic, these sensors and transmitters comprise two elements: a temperature-measuring device (the sensor part), which is the part that does the "sensing"; and a signal-processing component (the transmitter part), which converts the kind of signal generated by the "sensing" into a format that can be displayed or further processed.

Resistance temperature detectors (RTDs) and thermocouples are two of the most popular temperature-sensing technologies. As their name suggests, RTDs measure temperature by detecting changes in electrical resistance. In the case of an RTD that uses platinum, the resistance change is highly linear with temperature.

Taking a signal from a temperature sensor and converting it into a standardized output is the job of temperature transmitters. Transmitters can be used with either thermocouples or RTDs, but using them with RTDs seems to be becoming more common.

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Omega 3/4-260S-U21/2-304SS-CC Standard Threaded Thermowell for 1/4 " Dia Element
Omega 3/4-260S-U21/2-304SS-CC Standard Threaded Thermowell for 1/4 " Dia Element
$69.63 $83.56
Standard Threaded Thermowell for 1/4 " Dia Element, 304 SS, 0.26 " Bore Dia, Straight, 1/2 " Shank Dia, 4 ", 2-1/2 ", 7000 psi, 1/2 " NPSM, 3/4 " NPT, Cap & Chain, 260S Series, Each
Omega 1/2-260L-U41/2-304SS-CC Standard Threaded Thermowell for 1/4 " Dia Element
Omega 1/2-260L-U41/2-304SS-CC Standard Threaded Thermowell for 1/4 " Dia Element
$121.95 $146.34
Standard Threaded Thermowell for 1/4 " Dia Element, 304 SS, 0.26 " Bore Dia, Straight, 5/8 " Shank Dia, 9 ", 4-1/2 ", 7000 psi, 1/2 " NPSM, 1/2 " NPT, Cap & Chain, 260L Series, Each
Omega 5LSC-TT-J-24-72-SLE Insulated Thermocouple
Omega 5LSC-TT-J-24-72-SLE Insulated Thermocouple
$186.66 $223.99
Insulated Thermocouple, Ready-Made, J Type, 72 " Cable, 24 AWG, PFA, Standard Connector with Spool Cap, Exposed, °C Unit, 0 °C to 260 °C (32 °F to 500 °F), ANSI (Std), SLE, 5LSC Series, Pack of 5
Omega 5TC-TT-K-20-120-SB Insulated Thermocouple
Omega 5TC-TT-K-20-120-SB Insulated Thermocouple
$333.42 $400.10
Insulated Thermocouple, Ready-Made, K Type, 120 " Cable, 20 AWG, PFA, Stainless Steel Overbraid, Miniature Connector, Exposed, °C Unit, 0 °C to 260 °C (32 °F to 500 °F), Stripped Leads, ANSI (Std), 5SRTC Series, Pack of 5
Omega CAXL-14U-4RP Quick Disconnect Thermocouple Assembly
Omega CAXL-14U-4RP Quick Disconnect Thermocouple Assembly
$69.28 $83.14
Quick Disconnect Thermocouple Assembly, Standard CONN, K Type, 0 °C to 1204 °C (32 °F to 2200 °F), 0.25 " x 4 " (DxL) Probe, Super OMEGACLAD XL, Immersion, Ungrounded, ANSI, CAXL Series, Each
Omega CASS-316G-24-CL5 Quick Disconnect Thermocouple Assembly
Omega CASS-316G-24-CL5 Quick Disconnect Thermocouple Assembly
$111.92 $134.30
Quick Disconnect Thermocouple Assembly, Standard CONN, K Type, 0 °C to 1150 °C (32 °F to 2100 °F), 0.187 " x 24 " (DxL) Probe, 304 SS, Immersion, Grounded, ANSI, CASS Series, Each
Omega CASS-18G-6RP Quick Disconnect Thermocouple Assembly
Omega CASS-18G-6RP Quick Disconnect Thermocouple Assembly
$56.50 $67.80
Quick Disconnect Thermocouple Assembly, Standard CONN, K Type, 0 °C to 1070 °C, 0.125 " x 6 " (DxL) Probe, 304 SS, Immersion Probe, Grounded, ANSI, Replacement Probe, CASS Series, Each
Omega CAIN-18G-48-SST Quick Disconnect Thermocouple Assembly
Omega CAIN-18G-48-SST Quick Disconnect Thermocouple Assembly
$91.21 $109.45
Quick Disconnect Thermocouple Assembly, Standard CONN, K Type, 0 °C to 1070 °C, 0.125 " x 48 " (DxL) Probe, Inconel 600, Immersion Probe, Grounded, ANSI, Ship Straight, CAIN Series, Each
Omega CAIN-14U-18-SLE Quick Disconnect Thermocouple Assembly
Omega CAIN-14U-18-SLE Quick Disconnect Thermocouple Assembly
$109.93 $131.92
Quick Disconnect Thermocouple Assembly, STD Male CONN, K Type, 1/4 " x 18 " (DxL) Probe, Inconel 600, Immersion, Ungrounded, Direct/Compression Fitting, 1/4 ", SLE, CAIN Series, Each
Omega CAIN-14G-60-SST Quick Disconnect Thermocouple Assembly
Omega CAIN-14G-60-SST Quick Disconnect Thermocouple Assembly
$326.28 $391.54
Quick Disconnect Thermocouple Assembly, Standard CONN, K Type, 0 °C to 1150 °C, 0.25 " x 60 " (DxL) Probe, Inconel 600, Immersion Probe, Grounded, ANSI, Ship Straight, CAIN Series, Each
Omega 1-260H-U71/2-304SS-CC Heavy Duty Threaded Thermowell for 1/4 " Dia Element
Omega 1-260H-U71/2-304SS-CC Heavy Duty Threaded Thermowell for 1/4 " Dia Element
$160.29 $192.35
Heavy Duty Threaded Thermowell for 1/4 " Dia Element, 304 SS, 0.26 " Bore Dia, Tapered, 1-1/16 " Shank Dia, 9 ", 7-1/2 ", 7800 psi, 1/2 " NPSM, 1 " NPT, Cap & Chain, 260H Series, Each
Omega 1-260H-U21/2-316SS-CC Heavy Duty Threaded Thermowell for 1/4 " Dia Element
Omega 1-260H-U21/2-316SS-CC Heavy Duty Threaded Thermowell for 1/4 " Dia Element
$133.18 $159.82
Heavy Duty Threaded Thermowell for 1/4 " Dia Element, 316 SS, 0.26 " Bore Dia, Tapered, 1-1/16 " Shank Dia, 4 ", 2-1/2 ", 7800 psi, 1/2 " NPSM, 1 " NPT, Cap & Chain, 260H Series, Each