Endress+Hauser iTHERM ModuLine TM101 RTD Temperature Sensor

Name: Endress+Hauser TM101 RTD Temperature Sensor – Manual & Quote
Brand: Endress+Hauser (E & H)

Description

Overview

Endress+Hauser TM101 — formally the iTHERM ModuLine TM101 — is a basic, cost-effective RTD and thermocouple temperature sensor engineered for reliable measurement across general industrial applications where a straightforward, easy-to-specify thermometer is required rather than a fully digital smart transmitter assembly. Available with either a Pt100 resistance element to Class A or Class B tolerance, or a Type K thermocouple, the TM101 gives plant engineers a flexible platform that can be configured to match the process temperature range and accuracy demands of the application, from −50°C up to 1,100°C depending on sensor type. Its straightforward, modular construction makes it a natural fit for utility loops, HVAC systems, and general process monitoring where dependable temperature data matters more than advanced diagnostics.

With fast quotation turnaround and technical support, Seven Star LLC proudly supplies the Endress+Hauser TM101 to industrial buyers across the Sultanate of Oman and the wider GCC. Every TM101 unit we supply is an Endress+Hauser instrument with manufacturer documentation and in-country technical support — giving facilities in Muscat, Sohar, and Salalah responsive local support.

Measurement Principle

The iTHERM ModuLine TM101, in its RTD configuration, applies the resistance thermometry principle defined by IEC 60751: a platinum sensing element (Pt100) changes electrical resistance in a precise, repeatable relationship as its temperature changes. As the probe tip is inserted into the process medium or mounted against a vessel wall, the platinum element absorbs heat and its resistance rises correspondingly, allowing a connected transmitter or PLC input card to derive an accurate temperature value. Platinum RTDs offer excellent long-term stability and repeatability compared with thermocouples, which is why the TM101’s RTD variant is specified wherever process control loops require dependable, drift-resistant temperature feedback over years of continuous service.

Because the TM101 uses a direct sensing insert without moving parts, it introduces no mechanical wear points, no pressure drop into the process stream when correctly thermowell-mounted, and no risk of media contamination during normal operation. This solid-state measurement approach is what allows the TM101 to be installed on continuously running utility and process lines with minimal maintenance overhead, and it is a key reason facility engineers favor RTD sensing over more fragile bimetallic or filled-system alternatives on critical monitoring points.

Engineering Design of the Endress+Hauser TM101

The iTHERM ModuLine TM101 is built around a 6.0 mm diameter measuring insert available in 316L (1.4404) stainless steel or Alloy 600 for higher-temperature or more corrosive applications, with immersion lengths available up to 1,000 mm to suit a wide range of pipe and vessel geometries. The straight-tip insert design allows the TM101 to be paired with standard thermowells or installed via direct compression fitting, threaded connection (G1/2″, G1/4″, NPT1/2″), or metric thread (M18x1.5, M20x1.5), giving specifiers flexibility to match existing process connection standards without redesigning the mounting point.

On the Endress+Hauser TM101, the connection head houses the terminal block where the RTD or thermocouple element is wired out, and the TM101 can optionally be fitted with an Endress+Hauser iTEMP head-mounted transmitter to convert the raw sensor signal into a 4–20 mA, HART, or IO-Link output directly at the measurement point — reducing signal degradation over long cable runs and simplifying integration with distributed control systems. This modular head-and-insert architecture means the sensing element, thermowell, and transmitter can each be serviced or upgraded independently, extending the practical service life of the installation and reducing total cost of ownership across the plant’s instrumentation inventory.

Key Features

The Endress+Hauser TM101 combines proven RTD sensing technology with the flexibility and reliability that Endress+Hauser instrumentation is known for across regional industry.

The Pt100 RTD variant delivers Class A or Class B accuracy to IEC 60751, giving engineers a documented, standards-based tolerance specification for control-loop design.
A 316L stainless steel or Alloy 600 measuring insert resists corrosion and mechanical wear across a broad range of process media and ambient conditions.
Immersion lengths up to 1,000 mm and multiple process connection thread standards simplify retrofitting onto existing pipework and vessels.
Optional integral iTEMP transmitter output in 4–20 mA, HART, or IO-Link protocols enables direct digital integration with modern control systems.
The Endress+Hauser TM101 offers a fast t90 response time of approximately 17 seconds, supporting responsive temperature control on dynamic process loops.
The modular sensor-head-thermowell architecture allows independent servicing of each component, minimizing downtime during maintenance.
Solid-state RTD sensing eliminates moving parts, giving the TM101 a long, low-maintenance service life on continuously running utility and process lines.
Genuine Endress+Hauser manufacturing quality and full calibration traceability on the Endress+Hauser TM101 support regulated and quality-managed industrial environments.

Industrial Applications

The Endress+Hauser TM101 is widely deployed across general industrial process monitoring, utility loops, commercial HVAC systems, and district cooling networks, wherever a dependable, standards-compliant RTD sensor is needed without the added cost of a fully smart transmitter package. In RO desalination plants and water treatment facilities across the region, the TM101’s corrosion-resistant stainless steel insert makes it well-suited to continuous monitoring of process water and utility loops, while its flexible immersion lengths and thread options simplify Endress+Hauser TM101 installation on both new-build and retrofit projects. Pharmaceutical facilities, food and beverage plants, and light-industrial manufacturers operating in Oman’s growing industrial zones also specify the TM101 where documented accuracy class and calibration traceability form part of their quality-management systems.

With engineering support in Muscat, Seven Star LLC supplies the Endress+Hauser TM101 to contractors, system integrators, and plant operators throughout Oman, the wider GCC, and specifically within the Sohar and Salalah economic zones, where petrochemical, metals, and logistics operations depend on reliable instrumentation and responsive technical support. Hospitality developments and hospital complexes across Muscat also incorporate Endress+Hauser TM101 RTD sensors into their building-management and utility-monitoring systems, where accurate, stable temperature data directly supports energy efficiency and occupant comfort.

Technical Specifications

The table below summarizes the core specifications of the Endress+Hauser TM101 RTD temperature sensor as supplied by Seven Star LLC. Every Endress+Hauser TM101 unit is factory-tested before dispatch.

Parameter	Specification
Model	Endress+Hauser iTHERM ModuLine TM101
Sensor Type	Pt100 RTD (Class A / Class B, IEC 60751) or Type K thermocouple
Measuring Range (RTD)	−50°C to 200°C (−58°F to 392°F)
Insert Diameter	6.0 mm
Maximum Immersion Length	Up to 1,000 mm (39 in)
Insert Material	316L (1.4404) stainless steel or Alloy 600 (2.4816)
Process Connection	G1/2″, G1/4″, NPT1/2″, M18x1.5, M20x1.5, compression fitting
Output Signal	Direct RTD resistance, or 4–20 mA / HART / IO-Link via optional iTEMP transmitter
Response Time (t90)	≈17 seconds (configuration dependent)
Typical Applications	General process, utility, HVAC, and water treatment monitoring

Request a Quote for Endress+Hauser iTHERM ModuLine TM101 RTD Temperature Sensor

Seven Star LLC invites engineers, contractors, and facility managers across Oman and the GCC to request a formal quotation for the Endress+Hauser TM101 RTD temperature sensor. With manufacturer documentation, we supply on request with lead time confirmed at quotation, provide the full technical datasheet on request, and can connect you directly with our instrumentation division for application-specific configuration advice, including thermowell selection and transmitter integration. The Endress+Hauser TM101 is available on request — contact Seven Star LLC today for a quotation and current lead time, with local support.

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About brand

Endress+Hauser makes process measurement instruments for flow, level, pressure, temperature and liquid analysis. Georg H. Endress and Ludwig Hauser started the business in Lörrach, Germany, on 1 February 1953, first selling level meters, and the Endress+Hauser name has been used since 1957. The group is headquartered in Reinach, Switzerland, and has been wholly owned by the Endress family since 1975.

Seven Star LLC is an independent supplier listing Endress+Hauser flowmeters, level and pressure transmitters, temperature assemblies and liquid analysis products for buyers in Oman and the GCC. Instruments are matched from the full order code on the nameplate.

Endress+Hauser company profile

Origin	Founded in Lörrach, Germany, on 1 February 1953 by the Swiss engineer Georg H. Endress and Ludwig Hauser
Headquarters	Endress+Hauser AG, Reinach (Basel-Landschaft), Switzerland
Ownership	Family owned; the Endress family has been the sole shareholder since 1975, and a family charter commits the company to stay family owned
Size	About 16,500 employees and sales of about EUR 3.7 billion (2023, as reported by the company)
Product families	Proline flowmeters, Micropilot and Levelflex radar, Liquiphant switches, Cerabar and Deltabar pressure, iTEMP and iTHERM temperature, Liquiline and Memosens liquid analysis

Milestones

1953: Georg H. Endress and Ludwig Hauser start the business in Lörrach on 1 February, first selling level meters.
1957: The Endress+Hauser name comes into use.
1975: The Endress family becomes sole shareholder.
2023: About 16,500 employees and sales of about EUR 3.7 billion, as reported by the company.

Endress+Hauser product lines

Line	Measuring principle	Typical use
Promass F 300, Promass 80F, 83F/84F	Coriolis mass flow	Direct mass flow and density of liquids and gases, hydrocarbon transfer and chemical dosing
Promag P 300, P 500, H 300, W 400, W 10, 50P	Electromagnetic flow	Water, wastewater, slurries and other conductive liquids
Prowirl F 200, 72F	Vortex flow	Steam, gas and low-viscosity liquids
Prosonic Flow 92F, t-mass 65F	Ultrasonic and thermal mass flow	Water lines; compressed air and industrial gases
Micropilot FMR62, FMR67, FMR60, FMR10B, FMR20, FMR50, FMR52	Free-space radar level, 80 GHz and 26 GHz	Tanks, process vessels, silos and open water channels
Levelflex FMP51, FMP50, FMP54, FMP55	Guided wave radar level	Level and interface in vessels, separators and bypass chambers
Liquiphant FTL51, Prosonic S FMU90	Vibronic point level; ultrasonic level	High and low level alarms, pump protection, open channel flow
Cerabar PMC71B, PMP51B, PMP71, Deltabar PMD78B, PMD75	Pressure and differential pressure	Process pressure, hydrostatic level and DP flow
iTEMP TMT82, TMT162, iTHERM TM101, TR66, TR10	Temperature transmitters and thermometers	RTD and thermocouple points with thermowells
Liquiline CM444, CM442, Memosens CPS11E, Stamolys reagents	Liquid analysis	pH, ORP, conductivity, dissolved oxygen and nutrient analysis in water treatment and process

Where Endress+Hauser instruments are used

In Oman and the GCC, Endress+Hauser instruments are common in oil and gas production and processing, refineries and petrochemicals, desalination and water networks, wastewater treatment, power plants and food and beverage plants. Coriolis meters measure hydrocarbon and chemical flows, electromagnetic meters cover water and wastewater, radar transmitters handle tank and silo level, and Liquiline analysers monitor water quality. Proline 300 and 500 flowmeters include Heartbeat Technology for in-situ verification, which reduces the need to remove a meter for checks.

Ordering Endress+Hauser instruments: what we need

The order code on the nameplate (for example PMP71-1QA1S11RDADU) defines every option: measuring range, process connection, materials, output, approvals and display. Send it with the serial number; Endress+Hauser can retrieve the original configuration from the serial number. For a new instrument add the medium, operating and design pressure and temperature, range, line size or tank geometry, process connection, wetted materials, output or protocol (4-20 mA HART, PROFIBUS, FOUNDATION Fieldbus, Modbus) and the hazardous-area approval required. Older models such as Promass 80/83 or Micropilot M are replaced by current Proline or 80 GHz Micropilot devices.

Facts checked against Endress+Hauser company history and product information, October 2026.

Browse Endress+Hauser products by category: Flowmeters, Level Transmitter, Pressure Instrumentation, Temperature, Liquid Analysis Sensors, Liquid Analytical Systems.

Frequently Asked Questions

What is the measuring range of the Endress+Hauser TM101 in its RTD configuration?

In its Pt100 RTD configuration, the TM101 measures from -50 degrees C to 200 degrees C, with Class A or Class B accuracy to IEC 60751. A Type K thermocouple version extends coverage up to 1,100 degrees C for higher-temperature applications.

Does the TM101 require special tools or process shutdown to install?

No. The TM101 mounts via standard threaded connections, metric threads, or compression fittings directly into existing or new thermowells, so installation is quick and does not require specialized tooling or extended downtime.

What insert materials and lengths are available for the TM101?

The TM101 insert is available in 316L stainless steel or Alloy 600, in a 6.0mm diameter, with immersion lengths up to 1,000mm to accommodate a wide range of pipe and vessel sizes.

Can the TM101 output a 4-20 mA or HART signal for legacy control systems?

Yes. An optional Endress+Hauser iTEMP head-mounted transmitter converts the raw RTD signal to 4-20 mA, HART, or IO-Link directly at the sensor, allowing integration with both legacy analog loops and modern digital control systems.

Is Seven Star LLC an experienced supply partner for Endress+Hauser products?

Yes. Seven Star LLC is an experienced supplier of Endress+Hauser in Oman and the GCC, supplying instruments with local technical support.

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