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Thermocouple Probes with Molded M12 Connectors
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
M12M Series
  • Available in Type "J" with 304 Stainless Steel Sheath or Type "K" with Inconel 600 Sheath
  • Single Element Configuration Standard
  • Ungrounded Junction Standard, Optional Grounded Junction Available
  • Available in 1/8" & 1/4" Diameters in Various Lengths Molded in ANSI Color Codes
  • Available in 3mm & 6mm Diameters in Various Lengths Molded in IEC Color Codes
  • All Sensors are Supplied with A-Coded M12 Connectors with Thermocouple Compensated Pins
  • A Selection of M12 Thermocouple Extension Cables is Also Available
 Manuals (contact with email : [email protected])


These thermocouple probes provide a quick and convenient method for measuring temperature in your process. They can be used as-is, mounted into your process using one of trodeks's line of Compression Fittings, or used in a thermowell by using one of our Spring Loaded Fittings.

The M12 Series thermocouple probes are available as Type K thermocouples with Inconel 600 sheaths, or as Type J thermocouples with 304 Stainless Steel sheaths. Standard probesizes include 1/4" and 1/8" diameters with lengths of 6", 9", 12", 18" and 24", and metric sizes in 3mm and 6mm diameters with lengths of 250, 500, 750, 1000 and 1500mm. These thermocouple sensors can also be requested in other lengths as needed.

The connectors on these sensors are overmolded with the IEC standard color code on the metric sizes and the ANSI standard color code on the fractional sizes. The connector pinout is as shown in the accompanying figure.

To connect this sensor to your measurement or control instrument, we recommend using one oftrodeks's M12 Extension Cables (listed in the ordering table below). Besides these extension cables, trodeks offers a selection of specially assembled extension cables in a variety of cable materials with optional stainless steel braid or hose for improved mechanical protection, and a wide selection of instrument connections.

  • Type J Thermocouples have a 304 SST sheath with a temperature range of -40 to 600°C, with the connector overmolded in black nylon.
  • Type K Thermocouples have an Inconel 600 sheath with a temperature range of -40 to 1150°C, with the connector overmolded in yellow nylon for fractional sizes and green nylon for metric sizes.
  • Note: Molded Connectors have a maximum temperature of 90°C
  • Thermocouple Output is per IEC 584-2, Class 2.
  • Fractional sizes are 1/4 and 1/8 inch diameters in lengths of 6, 9, 12, 18 and 24 inches.
  • Metric sizes are 6mm and 3mm diameters in lengths of 250, 500, 700, 1000 and 1500mm.
  • Insulation Resistance is 100 megohms minimum at 100 VDC for ungrounded sensors.
  • Minimum Bend Radius is three times the outer diameter of the sensor.

  • Connect your M12 thermocouple probe to one of trodeks's wide variety on In-Stock controllers, data loggers, hand held thermometers, PLCs or other measurement & control products to complete your measurement or control system.

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