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iTEMP TMT31 temperature transmitter

4-20 mA temperature transmitter as head or DIN rail device with one RTD or one TC sensor input suitable for use in zone 2 (Ex ec) / Div. 2 areas

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iTEMP TMT31 temperature transmitter

4-20 mA temperature transmitter as head or DIN rail device with one RTD or one TC sensor input suitable for use in zone 2 (Ex ec) / Div. 2 areas

Get a quote

Benefits

  • Push-in terminals for fast and tool-free wiring during installation or maintenance
  • Optimization of the accuracy of the measuring point through sensor-transmitter-matching (CvD)
  • Diagnostic information according to NAMUR NE107
  • Increased safety through Ex approvals
FLEXible answers to individual needs
Current product

iTEMP TMT31 temperature transmitter

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  • Simple products
  • Easy to select, install and operate

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
Variable
5-year warranty

Engineered for Confidence

Our Fundamental Selection instruments feature an extended 5-year warranty – a clear testament of our trust in their long-term reliability and performance.

Should a warranty case occur, you can count on a fast replacement process and minimal administrative effort – giving you peace of mind when it matters most and helping you keep your operations running smoothly.

Warranty terms apply

The extended warranty is subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

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My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Product information

4-20 mA temperature transmitter as head or DIN rail device
Temperature transmitter iTEMP TMT31
Specifications
Measuring / Application task Temperature transmitters
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Description

The iTEMP TMT31 4-20 mA temperature transmitter is designed for customers in all industries who want to easily select, order, install and operate simple products. It is a reliable, long-term stable, single-channel 4-20 mA temperature transmitter for modular thermometers with form B connection head or for installation in control cabinets with DINrail mounting. The capable iTEMP TMT31 can be used with either all Pt100 and Pt1000 RTD sensors, or all common thermocouple sensors.

Field of application
  • Reliability, long-term stability, high accuracy and diagnostic functions
  • Installation in industrial and hygienic thermometers with terminal head form B
  • DINrail device for installation in control cabinets
  • Available with input for either RTD thermometers or for TC thermometers
  • Can be parameterized or preprogrammed at the factory
Benefits
  • Push-in terminals for fast and tool-free wiring during installation or maintenance
  • Optimization of the accuracy of the measuring point through sensor-transmitter-matching (CvD)
  • Diagnostic information according to NAMUR NE107
  • Increased safety through Ex approvals
Downloads
Most downloaded
Operating Instruction (BA)
BA iTEMP TMT31 Temperature transmitter
English version - 02/2026
Download
Technical Information (TI)
TI iTEMP TMT31 Temperature transmitter
English version - 02/2026
Download
Device Parameter (GP)
GP iTEMP TMT31 Temperature transmitter
English version - 01/2025
Download
The CAD Drawings will be available after the configuration.
All downloads
33 Downloads
Technical Information (TI)
Most downloaded
TI iTEMP TMT31 Temperature transmitter
English version - 02/2026
Download
Operating Instruction (BA)
Most downloaded
BA iTEMP TMT31 Temperature transmitter
English version - 02/2026
Download
Device Parameter (GP)
GP iTEMP TMT31 Temperature transmitter
English version - 01/2025
Download
Short Instruction (KA)
KA iTEMP TMT31 Temperature transmitter
4-20 mA temperature transmitter as head or DIN rail device with one RTD or one TC sensor input suitable for use in zone 2 (Ex ec) /
Div. 2 areas
English version - 12/2024
Download
Installation Instructions (EA)
Adapter DIN rail mounting Transmitter Adapter DIN rail mounting Transmitter
English version - 05/2026
Download
Installation Instructions (EA)
iTEMP TMT31, Transmitter 4-20mA iTEMP TMT31, Transmitter 4-20mA
English version - 01/2021
Download
Ex Safety Instruction (XA)
Control drawing CSA Control drawing CSA
English version - 06/2025
Download
Ex Safety Instruction (XA)
XA iTEMP TMT31 ATEX: Ex ec IIC Gc
English version - 04/2025
Download
Special Documentation (SD)
Device viewer Technical documentation in other languages
English version - 07/2021
Download
Fields of Activities (FA)
Misura della temperatura Misura della temperatura
Termometri e trasmettitori per l'industria di processo
Italian version - 07/2024
Download
Fields of Activities (FA)
Temperature measurement Thermometers and transmitters for the process industry
English version - 02/2025
Download
Fields of Activities (FA)
Temperaturmesstechnik Thermometer und Transmitter für die Prozessindustrie
German version - 02/2025
Download
Case Study (CS)
enespa ag works with Endress+Hauser to implement sustainable pyrolysis processes With Endress+Hauser, enespa ag has an experienced partner at its side.
Reliable and accurate measurement technology enables stable monitoring
and continuous optimization of the entire pyrolysis process.
Endress+Hauser supplies high-precision sensors for recording process
parameter. Real-time recording and processing of the measurement
data enables automated process control, which optimizes efficiency
and guarantees safe, trouble-free and scalable operation of the
pyrolysis plants.
English version - 01/2026
Download
Case Study (CS)
enespa ag works with Endress+Hauser to implement sustainable pyrolysis processes With Endress+Hauser, enespa ag has an experienced partner at its side.
Reliable and accurate measurement technology enables stab
le monitoring
and continuous optimization of the entire pyrolysis process.
Endress+Hauser supplies high-precision sensors fo
r recording process
parameter. Real-time recording and processing of the measurement
data enables automated process control,
which optimizes efficiency
and guarantees safe, trouble-free and scalable operation of the
pyrolysis plants.
English version - 02/2026
Download
Innovation (IN)
The perfect fit for your measuring point The perfect fit for your measuring point
Temperature transmitters from Endress+Hauser
English version - 07/2024
Download
Innovation (IN)
Wo Einfachheit auf Zuverlässigkeit trifft Unser Temperaturtransmitter iTEMP TMT31 kombiniert vereinfachte
Auswahl, Bestellung, Installation und Bedienung mit höchster
Zuverlässigkeit und Langzeitstabilität in einem Produkt.
German version - 02/2025
Download
Innovation (IN)
Die perfekte Lösung für Ihre Messstelle Temperaturtransmitter von Endress+Hauser
German version - 02/2025
Download
Innovation (IN)
Where simplicity meets reliability Where simplicity meets reliability
Our iTEMP TMT31 temperature transmitter combines simplified selection,
ordering, installation and operation with the highest reliability and
long-term stability in one product.
English version - 01/2025
Download
Manufacturer Declaration
Product family: Accessories, Configuration Kit, DIN rail transmitter, Field transmitter, Head transmitters Product root: TID10-, TMT127-, TMT128-, TMT142B-, TMT162-, TMT182B-, TMT188-, TMT31-, TMT36-, TMT71-, TMT72-, TMT80-, TMT82-, TMT84-
, TMT85-, TMT86-, TXU10-
Declaration number: HE_02282_01.25
Manufacturer specification: RoHS
Additional information: China RoHS
English version - 11/2025
Download
Manufacturer Declaration
Product family: DIN rail transmitter, Head transmitters Product root: OTMT31-, TMT31-
Declaration number: TMT31 SUPPLIERS DOC
Manufacturer specification: RoHS, EMC
Additional information: ACMA, Australia
English version - 03/2025
Download
Manufacturer Declaration
Product family: DIN rail transmitter, Field transmitter, Head transmitters Product root: TMT127-, TMT128-, TMT142B-, TMT182B-, TMT188-, TMT31-, TMT36-, TMT71-, TMT72-, TMT80-, TMT82-, TMT84-, TMT85-, TMT86-
Declaration number: ЕАЭС KZ 7500533.13.12.04143
Manufacturer specification: EMC
Russian version - 09/2024
Download
EU Declaration
Product family: Accessories, DIN rail transmitter, Field transmitter, Head transmitters Product root: OTMT127-, OTMT128-, OTMT187-, OTMT188-, OTMT31-, OTMT36-, OTMT80-, OTMT82-, OTMT84-, OTMT85-, TID10-, TMT111L-, TMT112
-, TMT112L-, TMT121-, TMT121L-, TMT122-, TMT125-, TMT127-, TMT128-, TMT142-, TMT162-, TMT180-, TMT180L-, TMT181-, TMT181L-, TMT182-,
TMT182L-, TMT187-, TMT188-, TMT31-, TMT36-, TMT80-, TMT82-, TMT84-, TMT85-
Declaration number: EC_00567_03.24
English version - 04/2025
Download
EU Declaration
Product family: Head transmitters Product root: OTMT31-, OTMT71-, OTMT72-, TMT31-, TMT71-, TMT72-, TMT82-, TMT84-, TMT85-, TMT86-
Declaration number: EC_00187_07.25
English version - 03/2025
Download
UK Conformity Assessed
Product family: Head transmitters Product root: TMT180-, TMT31-, TMT36-, TMT71-, TMT72-, TMT80-, TMT82-, TMT84-, TMT85-, TMT86-
Declaration number: UK_00471_04.24
English version - 11/2024
Download

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Spare parts and accessories

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iTEMP TMT31, Transmitter 4-20mA

further parts
further parts
Order code TMT31-
further parts
further parts

Fixing kit cpl. TMT8x/7x (european)

further parts
further parts
Order code 71044061
further parts
further parts

Fixing kit cpl. TMT8x/7x (american)

further parts
further parts
Order code 71044062
further parts
further parts

Spare part kit push-in termin. TMT7x/3x

further parts
further parts
Order code 71564518
Spare parts and accessories
4-20 mA temperature transmitter as head or DIN rail device
Temperature transmitter iTEMP TMT31

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Spare parts and accessories

further parts
further parts

iTEMP TMT31, Transmitter 4-20mA

further parts
further parts
Order code TMT31-
further parts
further parts

Fixing kit cpl. TMT8x/7x (european)

further parts
further parts
Order code 71044061
further parts
further parts

Fixing kit cpl. TMT8x/7x (american)

further parts
further parts
Order code 71044062
further parts
further parts

Spare part kit push-in termin. TMT7x/3x

further parts
further parts
Order code 71564518
Spare parts and accessories

Selection of compatible products

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