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RTDM12
Compact RTD Probe with Mounting Thread and M12 Connector
Models In Stock
- Extremely Rugged
- Molded (IP67) 4-Pin Connector with M12 Male Thread
- Fast Response Time*
- -50 to 120°C (-58 to 248°F)
RTDM12
From
$
56.49
Models In Stock
Product Overview
- Electrical Connection M12 4 pin Male
- Enclosure Ratings IP67
- Insulation Resistance 100 MΩ
- Insulation Resistance Note 100 MΩ with 100 Vdc
- Number of Wires 4
- Measurement Pressure, Max 40 bar
- Probe Diameter 3 mm
- Process Connection Size 1/8 in
- Process Temperature, Max 120 °C
- Process Temperature, Min -50 °C
- Response Time 5 sec
- Series ID RTDM12
- Temperature Sensor Type RTD
- Thermocouple Type N/A
Supported Applications
The Omega RTDM12 series consists of compact, single-element RTD plug sensors designed for pressure vessel applications and pressurized containers. These rugged probes are engineered for industrial environments requiring reliable temperature sensing with an NPT mounting fitting.
Operating Conditions & Performance
The RTDM12 series operates within a process temperature range of -50 to 120°C (-58 to 248°F). The sensors utilize a PT100Ω sensing element at 0°C conforming to IEC 751 class A accuracy. Performance characteristics include an insulation resistance of 100 MΩ with 100 Vdc and a response time of less than 5 seconds.
Constructed for durability, the series features a pressure rating of 40 bar (580 psi). The molded Nylon connector body provides IP67 protection up to a maximum temperature of 90°C. Each probe is permanently marked with its exact ohmical calibration test value at 0°C, manufacturing date, and traceability code.
Configuration Options
The series offers configurable dimensions and connection types to accommodate specific installation requirements:
- Sensing Element: PT100Ω @ 0°C (IEC 751 class A) or PT1000 options.
- Probe Dimensions: 3 mm (0.12") diameter with insertion lengths of 13 mm (0.51") or 24 mm (0.94").
- Process Connections: Available in 1/8 NPT or G1/8 threads.
- Housing & Materials: AISI 316SS case and sheath with wetted parts made of 316 stainless steel. The connector features a molded Nylon body with an M12X1 metal thread (to DIN-VDE 0627).
- Cable Accessories: Options include the M12CFM-P24STPC-SFSR-FL-3 (3 m PVC insulated, flying leads) and M12CFM-T24SSPC-SFSR-FL-20 (20 m FEP insulated, silver plated copper).
Key Product Differences
Variants within the RTDM12 series are distinguished by thread type, insertion length, and sensor element resistance. Models with 1/8 NPT threads include part numbers such as RTDM12-1/8NPT-3MM-13MM-A. Metric variants utilize G1/8 threading, exemplified by models like RTDM12-G1/8-3MM-13MM-A.
The series also supports PT1000 configurations in specific model numbers (e.g., suffixes indicating the element type), alongside standard Class A PT100 sensors. All variants maintain a one-piece construction for direct immersion.
PDFs & Manuals
Accessories
accessories
Show Ratings & Reviews
Rated 5 out of
5
by
Kwright141 from
QUALITY RTD
Small and seem to be robust. The 12mm connector is key for this part.
Date published: 2026-07-13
Rated 5 out of
5
by
dbech1 from
Good Sensor
Easy to find and at a good price. Online catalog was easy to navigate.
Date published: 2018-02-13
What is the maximum recommended cable length for these RTDs?
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.
Date published: 2022-06-26
Can this temperature used to measure the hot air temperature flowing in a duct or pipe?
Yes, the RTDM12-1/8NPT-3MM-13MM-A can be threaded into a pipe or duct to measure hot air flow.
Date published: 2019-10-15
Can the sensor and the M12 connector be submerged in water ?
Thank you for your inquiry. M12 connectors comply with protection class IP67. This allows for protection from water immersion at a depth of 1 meter maximum for no more than 30 minutes.
Date published: 2024-08-01
What is the accuracy of this probe?
Thank you for the inquiry. Accuracy is IEC 751 class A +/- (0.15 C + 0.2% of reading)
Best regards,
OMEGA
Date published: 2023-10-29
What other accessories are required with this probe to connect it to a Raspberry Pi?
Thank you for the inquiry. Please forward this request to TEMP@DWYEROMEGA.COM.
Best regards
OMEGA
Date published: 2023-10-29
can this probe be used with a controller that accepts 2 or 3 wire inputs
Thank you for your inquiry. Yes these can still be used with devices that accept less RTD wire input.
Date published: 2023-10-18
Is the Compact RTD compatible with the CND3 Temperature and Process PID Controller?
Yes, the CND3 controller will take the input signal from this sensor.
Date published: 2020-03-13
What is the temp coefficient for this? Is it the standard 0.00385 ohm/ohm/C?
Thank you for your inquiry. Yes, it is the European curve 0.00385.
Date published: 2023-08-17