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Compact RTD Probe with Mounting Thread and M12 Connector

Compact RTD Temperature Sensors


Item# RTDM12-1/8NPT-3MM-24MM-A

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $52.10
10-24 $49.50
25-49 $48.45
50-99 $46.37
100-199 $45.33
200+ $44.29

In stock

Lead Time (If not in stock): 10 weeks
Compact RTD Temperature Sensors RTDM12-1/8NPT-3MM-24MM-A RTDM12-1/8NPT-3MM-24MM-A
  • Extremely Rugged
  • Molded (IP67) 4-Pin Connector with M12 Male Thread
  • Fast Response Time*
  • -50 to 120°C (-58 to 248°F)

RTDM12-1/8NPT-3MM-24MM-A Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Process Connection Size
Nominal Output
Probe Length
Process Temperature Unit
Process Temperature Min
Process Temperature Max
Process Temperature Range
Sensor Application
Number of Wires
Sheath Material
Probe Diameter
Termination Connection Type

This RTD plug sensor is ideal for pressure vessel applications, pressurized containers and applications requiring a temperature sensor with an NPT mounting fitting. The single element design has a 1/8' diameter, 316 stainless steel probe that extends 13 mm (0.51') or 24 mm (0.94') from a 1/8 NPT mounting thread. The M12 connector assures a very reliable connection. Extension cables are offered in different lengths with right or straight angles.

Sensing Element: RTD PT100Ω @ at 0°C to IEC 751 class A
Construction: Screw in RTD probe for direct immersion, one piece construction
Case Material: AISI 316SS
Temperature Range: -50 to 120°C (-58 to 248°F)
Maximum Pressure: 40 bar (580 psi)
Process Connection: 1/8 NPT
Connection: 4-pin male connector with body in molded Nylon and M12X1 metal thread (to DIN-VDE 0627) with degree of protection IP67 (TMax 90°C)
Insulation Resistance: 100 MΩ with 100 Vdc
Response Time*: Less than 5 seconds
Marking: Each probe is permanently marked with the exact ohmical calibration test value at 0°C, the manufacturing date and a traceability code
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Rated 5 out of 5 by from Good Sensor Easy to find and at a good price. Online catalog was easy to navigate.
Date published: 2018-02-13
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can this probe be used with a controller that accepts 2 or 3 wire inputs

Asked by: tdddd
Thank you for your inquiry. Yes these can still be used with devices that accept less RTD wire input.
Answered by: Application Engineer CB
Date published: 2023-10-18

What is the temp coefficient for this? Is it the standard 0.00385 ohm/ohm/C?

Asked by: cnicho35
Thank you for your inquiry. Yes, it is the European curve 0.00385.
Answered by: Application Engineer SP
Date published: 2023-08-17

Where is the wiring diagram/schematics for RTDM12-1/8NPT-3MM-24MM-A?

Asked by: LaHoo
Thank you for your inquiry. Please see wiring diagram on the Data Sheet (PDF).
Answered by: Application Engineer CB
Date published: 2023-02-28

What is the accuracy of this probe?

Asked by: isaisa002
Thank you for the inquiry. Accuracy is IEC 751 class A +/- (0.15 C + 0.2% of reading) Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-10-29

What other accessories are required with this probe to connect it to a Raspberry Pi?

Asked by: isaisa002
Thank you for the inquiry. Please forward this request to TEMP@DWYEROMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-10-29

What is the maximum recommended cable length for these RTDs?

Asked by: John42
Thank you for your inquiry John. You can use the 3 m long M12CFM-P24STPC-SFSR-FL-3 cable or the 20 m long M12CFM-T24SSPC-SFSR-FL-20 cable with this probe without any issues. Anything longer than these cables, the wire gauge and the wire length would introduce error into the measurement.
Answered by: Application Engineer MC
Date published: 2022-06-26

Can this temperature used to measure the hot air temperature flowing in a duct or pipe?

Asked by: MArky
Yes, the RTDM12-1/8NPT-3MM-13MM-A can be threaded into a pipe or duct to measure hot air flow.
Answered by: Engineer9
Date published: 2019-10-15

Is the Compact RTD compatible with the CND3 Temperature and Process PID Controller?

Asked by: MrLong
Yes, the CND3 controller will take the input signal from this sensor.
Answered by: Temperature
Date published: 2020-03-13
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