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RTD
Resistance Temperature Detectors (RTDs) provide precise, repeatable temperature measurement for industrial and laboratory applications where accuracy and stability are critical. DwyerOmega offers a broad selection of RTD sensors, probes, and assemblies—including PT100 and PT1000 options—designed to meet demanding engineering requirements across process control, manufacturing, HVAC, and test environments. Our RTDs are available in multiple element types, sheath materials, mounting configurations, and lead options to ensure compatibility with your system design and temperature range. Engineered for long-term performance and tight tolerances, DwyerOmega RTDs deliver reliable data you can trust, backed by technical expertise and fast product availability to support your application and project timeline. To learn more read our blog about RTDs vs NTCs
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General use fast response RTDs mounted in glass tape & polyimide with a self-adhesive backing for easily measuring surface temperatures up to 290°C. Class A Accuracy.
| Numéro de produit | Cable Length | Electrical Connection | Number of Wires |
|---|---|---|---|
|
|
180 in
|
Stripped Leads
|
3
|
|
|
40 in
|
Stripped Leads
|
3
|
|
|
40 in
|
Stripped Leads
|
4
|
|
|
80 in
|
Stripped Leads
|
3
|
|
|
120 in
|
Stripped Leads
|
3
|
This connector-style probe has a 3-prong Omega "MTP" mini connector for easy connection to extension cables and handheld meters. Probe diameter is 1/8".
| Numéro de produit | Model | Number of Wires | Probe Diameter | Probe Length |
|---|---|---|---|---|
|
|
High
|
3
|
0.125 in
|
3 in
|
|
|
Extreme
|
3
|
0.125 in
|
6 in
|
|
|
High
|
3
|
0.125 in
|
4 in
|
|
|
High
|
3
|
0.125 in
|
6 in
|
|
|
High
|
3
|
0.125 in
|
9 in
|
| Numéro de produit | Précision | Cable Length | Electrical Connection | Nominal Resistance | Number of Wires |
|---|---|---|---|---|---|
|
|
Class A
|
180 in
|
Stripped Leads
|
100 Ω
|
4
|
|
|
Class A
|
5 m
|
Stripped Leads
|
100 Ω
|
3
|
|
|
Class A
|
1 m
|
Stripped Leads
|
100 Ω
|
4
|
|
|
Class A
|
2 m
|
Stripped Leads
|
100 Ω
|
4
|
|
|
Class A
|
3 m
|
Stripped Leads
|
100 Ω
|
4
|
Our PR-14 series RTD probe has miniature aluminum protection head and screw-on cap with chain. It includes PT100 Ω or PT1000 Ω RTD element, and 1/2" NPT mounting threads
| Numéro de produit | Number of Wires | Probe Diameter | Probe Length | Process Temperature, Max |
|---|---|---|---|---|
|
|
3
|
0.25 in
|
4 in
|
600 °C
|
|
|
3
|
0.25 in
|
6 in
|
600 °C
|
|
|
3
|
0.125 in
|
6 in
|
600 °C
|
|
|
3
|
0.25 in
|
4 in
|
450 °C
|
|
|
3
|
0.25 in
|
6 in
|
450 °C
|
Surface sensor with an aluminum housing for fast transfer of heat to/from the sensing element. Choice of either 100 ohm or 1000 ohm RTD element.
| Numéro de produit | Précision | Cable Length | Electrical Connection | Insulation | Nominal Resistance | Screw Size |
|---|---|---|---|---|---|---|
|
|
Class A
|
1 m
|
Stripped Leads
|
PFA
|
100 Ω
|
#3, #4
|
|
|
Class A
|
1 m
|
Spade Lugs
|
PFA
|
100 Ω
|
#3, #4
|
|
|
Class A
|
1 m
|
3-Prong Miniature Male Thermocouple Connector
|
PFA
|
100 Ω
|
#3, #4
|
|
|
Class A
|
1 m
|
3-Prong Standard Male Thermocouple Connector
|
PFA
|
100 Ω
|
#3, #4
|
|
|
Class B
|
1 m
|
Stripped Leads
|
PFA
|
100 Ω
|
#3, #4
|
Class A, pt100 RTD immersion probes with 1/8" NPT mounting threads. 40 inch long PFA insulated lead wires and 3-prong connector come standard.
| Numéro de produit | Cable Length | Electrical Connection |
|---|---|---|
|
|
40 in
|
3-Prong Miniature Male Thermocouple Connector
|
|
|
120 in
|
3-Prong Miniature Male Thermocouple Connector
|
|
|
40 in
|
3-Prong Standard Male Thermocouple Connector
|
|
|
40 in
|
3.5 mm TS Plug
|
|
|
40 in
|
TA4 Female Connector
|
RTD probes that are Ideal for pressurized containers. Have a 1/8" NPT or 1/8 BSPP (G 1/8) mounting thread, 4-pin M12 A-coded connector and molded transition.
| Numéro de produit | Précision | Probe Length | Process Connection Type | RTD Type |
|---|---|---|---|---|
|
|
Class A
|
24 mm
|
NPT Male
|
100 Ω Pt Sensor
|
|
|
Class A
|
13 mm
|
BSPP Male
|
100 Ω Pt Sensor
|
|
|
Class A
|
24 mm
|
BSPP Male
|
100 Ω Pt Sensor
|
|
|
Class A
|
13 mm
|
NPT Male
|
100 Ω Pt Sensor
|
|
|
Class B
|
13 mm
|
NPT Male
|
100 Ω Pt Sensor
|
Omega's PR-18 series probe with standard aluminum protection head with flip-top includes PT100 Ω platinum RTD element or PT1000 RTD element and 1/2" NPT mounting threads.
| Numéro de produit | Probe Length | Process Temperature, Max |
|---|---|---|
|
|
18 in
|
600 °C
|
|
|
4 in
|
600 °C
|
|
|
6 in
|
600 °C
|
|
|
9 in
|
600 °C
|
|
|
4 in
|
450 °C
|
Our PR-12 series probe cast iron protection head and screw-on cap contains PT100 Ω platinum RTD element or PT1000 Ω RTD element, and 1/2" NPT mounting threads.
| Numéro de produit | Number of Wires | Probe Diameter | Probe Length | Process Temperature, Max |
|---|---|---|---|---|
|
|
3
|
0.25 in
|
6 in
|
600 °C
|
|
|
3
|
0.25 in
|
2 in
|
600 °C
|
|
|
3
|
0.25 in
|
4 in
|
600 °C
|
|
|
3
|
0.25 in
|
9 in
|
600 °C
|
|
|
3
|
0.125 in
|
6 in
|
600 °C
|
The PR-13 RTD probe assembly has a 3-prong Omega "OTP" standard style connector for easy connection to extension cables, hand-held meters or other instrumentation.
| Numéro de produit | Model | Number of Wires | Probe Diameter | Probe Length |
|---|---|---|---|---|
|
|
Extreme
|
3
|
0.125 in
|
6 in
|
|
|
Extreme
|
3
|
0.25 in
|
4 in
|
|
|
Extreme
|
3
|
0.25 in
|
6 in
|
|
|
High
|
3
|
0.25 in
|
3 in
|
|
|
High
|
3
|
0.25 in
|
6 in
|
RTD probes that have a 4 to 20 milliamp programmable/scalable output and a molded M12, A-coded connector. Various lengths and diameters available.
| Numéro de produit | Electrical Connection | Probe Diameter | Probe Length |
|---|---|---|---|
|
|
M12 4 pin Male
|
0.25 in
|
4 in
|
|
|
M12 4 pin Male
|
0.25 in
|
6 in
|
|
|
M12 4 pin Male
|
0.25 in
|
9 in
|
|
|
M12 4 pin Male
|
0.125 in
|
4 in
|
|
|
M12 4 pin Male
|
0.125 in
|
6 in
|
General use fast response RTDs mounted in glass tape & polyimide with a self-adhesive backing for easily measuring surface temperatures up to 290°C. Class B Accuracy.
| Numéro de produit | Cable Length | Electrical Connection | Number of Wires |
|---|---|---|---|
|
|
40 in
|
Stripped Leads
|
3
|
|
|
40 in
|
Stripped Leads
|
4
|
|
|
80 in
|
Stripped Leads
|
3
|
|
|
120 in
|
Stripped Leads
|
3
|
|
|
40 in
|
3-Prong Miniature Male Thermocouple Connector
|
3
|
Sensors available with stainless steel or plastic cages. PT100 3 wire RTD class A accuracy with your choice of standard or mini 3-prong connector. Great for laboratory use.
| Numéro de produit | Electrical Connection | Sheath Material |
|---|---|---|
|
|
3-Prong Miniature Male Thermocouple Connector
|
Stainless Steel
|
|
|
3-Prong Miniature Male Thermocouple Connector
|
Plastic
|
|
|
3-Prong Standard Male Thermocouple Connector
|
Plastic
|
RTD immersion probes that are bendable, have NPT mounting threads and various sheath size options. Come standard with a 4-pin M12 connector and 316 SS sheath.
| Numéro de produit | Précision | Probe Diameter | Probe Length | Process Connection Size | RTD Type | Wire Code Option |
|---|---|---|---|---|---|---|
|
|
Class A
|
0.25 in
|
6 in
|
1/2 in
|
100 Ω Pt Sensor
|
1
|
|
|
Class A
|
0.25 in
|
2 in
|
N/A
|
100 Ω Pt Sensor
|
1
|
|
|
Class A
|
0.25 in
|
2.5 in
|
N/A
|
100 Ω Pt Sensor
|
1
|
|
|
Class A
|
0.25 in
|
4 in
|
N/A
|
100 Ω Pt Sensor
|
1
|
|
|
Class A
|
0.25 in
|
6 in
|
N/A
|
100 Ω Pt Sensor
|
1
|
Family of 100 ohm, Class B accuracy RTD sensors including surface mount, bolt down, immersion, air sensing and screw down designs. Sold in 3-Packs.
| Numéro de produit | Electrical Connection | Probe Diameter | Process Connection Size | Sheath Material | Temperature Probe Style |
|---|---|---|---|---|---|
|
|
Stripped Leads
|
0.125 in
|
4 mm
|
304 Stainless Steel
|
Air Probe
|
|
|
Stripped Leads
|
0.5 in
|
N/A
|
304 Stainless Steel
|
Air Probe
|
|
|
Stripped Leads
|
0.5 in
|
N/A
|
Plastic
|
Air Probe
|
|
|
Stripped Leads
|
0.4375 in
|
N/A
|
304 Stainless Steel
|
Surface Probe
|
|
|
Stripped Leads
|
0.125 in
|
1/8 in
|
304 Stainless Steel
|
Immersion Probe
|
Thin-film element RTD probes with 1/8" NPT brass compression fittings and armored cable. Commonly used in extruder & molding equipment. Straight and bend options available.
| Numéro de produit | Bend | Cable Length | Electrical Connection | Insulation | Probe Length |
|---|---|---|---|---|---|
|
|
Straight
|
60 in
|
Stripped Leads
|
PFA with Armored Cable
|
2 in
|
|
|
Straight
|
60 in
|
Spade Lugs
|
PFA with Armored Cable
|
2 in
|
|
|
Straight
|
60 in
|
3-Prong Standard Male Thermocouple Connector
|
PFA with Armored Cable
|
2 in
|
|
|
Straight
|
60 in
|
Spade Lugs
|
PFA with Armored Cable
|
4 in
|
|
|
Straight
|
60 in
|
3-Prong Standard Male Thermocouple Connector
|
PFA with Armored Cable
|
4 in
|
Family of 100 ohm, Class A accuracy RTD sensors including surface mount, bolt down, immersion, air sensing and screw down designs.
| Numéro de produit | Electrical Connection | Sheath Material |
|---|---|---|
|
|
3-Prong Miniature Male Thermocouple Connector
|
304 Stainless Steel
|
|
|
Stripped Leads
|
304 Stainless Steel
|
|
|
Spade Lugs
|
304 Stainless Steel
|
|
|
MTP
|
304 Stainless Steel
|
|
|
3-Prong Standard Male Thermocouple Connector
|
304 Stainless Steel
|
PT100 RTD air temperature probe with M12 connector and NPT connections. Accuracy ranges from Class A to 1/10 DIN and 1/3 DIN per IEC60751. Withstand pressure up to 400 psi.
| Numéro de produit | Précision | Probe Length | Process Connection Size |
|---|---|---|---|
|
|
Class A
|
2 in
|
1/4 in
|
|
|
Class A
|
6 in
|
None
|
|
|
Class A
|
9 in
|
None
|
|
|
Class A
|
12 in
|
None
|
|
|
Class A
|
18 in
|
None
|
Spring-loaded RTD probes with a powerful 13lb pull magnetic housing ideal for easily mounting to and measuring the surface temperature of ferrous metals up to 400°C.
| Numéro de produit | Cable Length | Insulation | Nominal Resistance | Process Temperature, Max |
|---|---|---|---|---|
|
|
3 m
|
Fiberglass with Stainless Steel Overbraid
|
100 Ω
|
400 °C
|
|
|
1 m
|
Fiberglass
|
100 Ω
|
400 °C
|
|
|
3 m
|
Fiberglass
|
100 Ω
|
400 °C
|
|
|
1 m
|
PVC
|
100 Ω
|
100 °C
|
|
|
3 m
|
PVC
|
100 Ω
|
100 °C
|
Class A, pt100 RTD probe ideal for gas and air applications. Has a flanged housing and small diameter probe to allow easy mounting into ducts and flow systems.
| Numéro de produit | Cable Length |
|---|---|
|
|
180 in
|
|
|
600 in
|
...
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