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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
Added to Your Shopping Basket
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.
| Product Number | 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
|
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.
| Product Number | Accuracy | 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
|
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.
| Product Number | Accuracy | 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 A
|
13 mm
|
BSPP Male
|
1000 Ω pt sensor
|
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.
| Product Number | 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
|
|
|
80 in
|
3-Prong Miniature Male Thermocouple Connector
|
3
|
RTD sensors encapsulated in a small aluminum heat-conductive housing with a screw mounting hole. Ideal for bolting to flat surfaces to measure temperatures up to 230°C.
| Product Number | Temperature Sensor Type |
|---|---|
|
|
RTD
|
RTD immersion probes that have various tapered & straight mounting thread and sheath size options. 4-wire RTD construction with a M12, A-coded 4-pin connector.
| Product Number | Accuracy | 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
|
3 mm
|
50 mm
|
N/A
|
100 Ω Pt Sensor
|
2
|
|
|
Class A
|
3 mm
|
250 mm
|
N/A
|
100 Ω Pt Sensor
|
2
|
|
|
Class A
|
6 mm
|
100 mm
|
N/A
|
100 Ω Pt Sensor
|
1
|
|
|
Class A
|
6 mm
|
150 mm
|
N/A
|
100 Ω Pt Sensor
|
2
|
Sensor has a mounting hole to fit a #4 bolt, and comes standard with a 40" (1 meter) long cable and either 2, 3 or 4-wire connections.
| Product Number | Cable Length | Number of Wires |
|---|---|---|
|
|
1 m
|
2
|
|
|
1 m
|
N/A
|
|
|
1 m
|
3
|
|
|
1 m
|
4
|
The Platinum RTD Room series offers sleek, stylish solutions designed for comfort and modern living spaces.
| Product Number | Calibration Option | Construction Type | Housing Material | Material Construction Option | Output Signal | Switch Type | Temperature Sensor Type |
|---|---|---|---|---|---|---|---|
|
|
N/A
|
N/A
|
Room (R2), ABS Plastic
|
N/A
|
None
|
N/A
|
1000 Ω 2 Wire Platinum RTD
|
|
|
N/A
|
N/A
|
Room (R2), ABS Plastic
|
N/A
|
None
|
N/A
|
1000 Ω 3 Wire Platinum RTD
|
|
|
N/A
|
N/A
|
Room (R2), ABS Plastic
|
N/A
|
None
|
N/A
|
100 Ω 2 Wire Platinum RTD
|
|
|
N/A
|
N/A
|
Room (R2), ABS Plastic
|
N/A
|
None
|
N/A
|
100 Ω 3 Wire Platinum RTD
|
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".
| Product Number | 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
|
| Product Number | Accuracy | 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
|
IEC751 Class A accuracy and 0.01 resolution RTD datalogging thermometer with PT100 4 wire probe included. Datalogs up to 16,000 records and has a USB output.
| Product Number | Form factor |
|---|---|
|
|
Handheld
|
Omega's RTD probe with lead wire offers choice of 2-3- or 4-wire configuration. This is available in three temperature ranges covering -200°C to 600°C (-328 to 1112°F)
| Product Number | Cable Length | Nominal Resistance | Number of Wires | Probe Diameter | Probe Length | Process Temperature, Max |
|---|---|---|---|---|---|---|
|
|
40 in
|
1000 Ω
|
4
|
0.125 in
|
4 in
|
250 °C
|
|
|
40 in
|
100 Ω
|
3
|
0.25 in
|
2 in
|
600 °C
|
|
|
40 in
|
100 Ω
|
3
|
0.25 in
|
3 in
|
600 °C
|
|
|
40 in
|
100 Ω
|
3
|
0.25 in
|
4 in
|
600 °C
|
|
|
40 in
|
100 Ω
|
3
|
0.25 in
|
6 in
|
600 °C
|
M12 cable with 4 pin connectors, straight or angled. FEP cable with high temp 205°C LCP connectors. Vibe tested to MIL-STD-202G
| Product Number | Cable Length | Connector A | Connector B |
|---|---|---|---|
|
|
5 m
|
M12 right angled 4 pin Female
|
Stripped Leads
|
|
|
2 m
|
M12 right angled 4 pin Female
|
Stripped Leads
|
|
|
2 m
|
M12 4 pin Female
|
Stripped Leads
|
|
|
3 m
|
M12 4 pin Female
|
Stripped Leads
|
|
|
5 m
|
M12 4 pin Female
|
Stripped Leads
|
Protection heads are available in a variety of materials, are compatible with various probe diameters and can use transmitters. Also, configurable w/ single or dual elements.
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
| Product Number | 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
|
Bolt-on or bolt-mount RTD sensors encapsulated in a small stainless steel #8-32 or M4 threaded housing. Ideal for bolting to objects to measure temperatures up to 230°C.
| Product Number | Electrical Connection |
|---|---|
|
|
3-Prong Miniature Male Thermocouple Connector
|
STYLE 3 RTD ELEMENT, 4 WIRES W/CONN FOR HH804
| Product Number | Accuracy | Cable Length | Electrical Connection | Insulation | Number of Wires | Process Temperature, Max |
|---|---|---|---|---|---|---|
|
|
Class A
|
40 in
|
Stripped Leads
|
PFA
|
3
|
260 °C
|
|
|
Class A
|
1 m
|
Stripped Leads
|
Fiberglass
|
2
|
300 °C
|
|
|
Class A
|
1 m
|
Stripped Leads
|
PFA
|
2
|
260 °C
|
|
|
Class A
|
40 in
|
Stripped Leads
|
Fiberglass
|
2
|
300 °C
|
|
|
Class A
|
12 in
|
Stripped Leads
|
PFA
|
3
|
260 °C
|
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.
| Product Number | 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.
| Product Number | 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.
| Product Number | 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
|
...
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