SMTS-RTD Miniature Surface Mount Threaded Stud RTD Sensor - PT100

The SMTS-RTD Miniature Surface Mount Threaded Stud RTD Sensor is a compact, precision-engineered temperature sensor designed for accurate and repeatable surface temperature measurement in industrial, laboratory, and research applications. Featuring a thin-film platinum RTD element and a threaded stud mounting configuration, the SMTS-RTD provides excellent thermal contact, high measurement stability, and reliable long-term performance.

Manufactured in the USA using high-quality materials, this RTD sensor is ideal for applications where precision, durability, and ease of installation are critical.

Designed for Precision Surface Temperature Measurement

The SMTS-RTD is specifically designed for measuring surface temperature through direct mechanical attachment. The threaded stud ensures a secure and repeatable interface between the sensor and the measurement surface, allowing for consistent thermal coupling and improved measurement accuracy.

This makes the SMTS-RTD ideal for:

• Surface temperature monitoring of machinery and components

• Laboratory testing and validation

• Heat transfer and thermal profiling studies

• Process monitoring and control

By eliminating variability associated with adhesive or clamp-mounted sensors, the SMTS-RTD delivers more consistent and repeatable measurement results.

Thin-Film Platinum RTD Element for High Accuracy

At the core of the SMTS-RTD is a precision thin-film platinum sensing element:

• PT100 (100 Ω at 0°C) or PT1000 (1000 Ω at 0°C) options

• Temperature coefficient (α): 0.00385

Platinum RTDs are widely recognized for their:

• Excellent accuracy and repeatability

• Long-term stability

• Predictable and linear response

The SMTS-RTD is built to Class A accuracy, providing:

• ±0.15°C accuracy

This level of precision makes it well-suited for applications requiring high measurement confidence.

Threaded Stud Design for Secure Installation

The SMTS-RTD features a miniature threaded stud mounting configuration, allowing for easy installation into tapped holes or threaded fittings.

Available thread sizes include:

• #6-32

• #8-32

• #10-32

• 1/4"-20

• M4 x 0.7

This design provides:

• Secure mechanical attachment

• Consistent thermal contact

• Reduced measurement variability

• Reliable long-term performance

Threaded mounting is particularly advantageous in applications where vibration, movement, or repeated measurements are present.

Rugged Stainless Steel Construction

The SMTS-RTD is built with a durable stainless steel hex fitting:

• Material: 316 stainless steel

This construction provides:

• Excellent corrosion resistance

• High mechanical strength

• Compatibility with harsh industrial environments

The rugged design ensures dependable operation even in demanding conditions.

Wide Operating Temperature Range

The SMTS-RTD is designed for moderate temperature surface measurement applications:

• Temperature range: –58°F to 400°F (–50°C to 204°C)

This range makes it suitable for:

• Industrial equipment monitoring

• Laboratory environments

• Process temperature measurement

Stable and Predictable Performance

RTDs are known for their stability over time, and the SMTS-RTD is no exception. Its thin-film platinum element ensures:

• Minimal drift over time

• Consistent measurement accuracy

• Reliable long-term operation

This makes it a preferred choice for applications where calibration stability is critical.

Fast and Consistent Response

The SMTS-RTD offers a defined response time suitable for surface measurement applications:

• Time constant: 6 seconds (63.2% response to a step change)

This provides a balance between responsiveness and measurement stability, ensuring accurate tracking of temperature changes.

Flexible Lead Wire Options

The sensor is supplied with high-quality lead wires designed for durability and flexibility:

• Wire type: 26 AWG stranded conductors

• Insulation: PFA Teflon

PFA insulation offers:

• Excellent temperature resistance

• Chemical resistance

• Flexibility for routing in tight spaces

2-Wire or 3-Wire Configurations

The SMTS-RTD is available in multiple wiring configurations:

• 2-wire configuration: Simple installation for basic applications

• 3-wire configuration: Improved accuracy by compensating for lead wire resistance

The 3-wire option is commonly used in precision applications where measurement accuracy is critical.

Optional Connector Configurations

The SMTS-RTD can be configured with different connection options to suit system requirements:

• No connector (bare leads)

• Female mini-jack

• Male mini-plug

This flexibility allows for easy integration with instrumentation and data acquisition systems.

IP64 Rated for Industrial Environments

The SMTS-RTD is designed to operate reliably in industrial settings:

• Ingress protection rating: IP64

This provides protection against dust and splashing water, making it suitable for a wide range of environments.

Typical Applications

The SMTS-RTD Miniature Surface Mount RTD Sensor is ideal for:

• Surface temperature measurement on machinery

• Industrial process monitoring

• Laboratory and R&D testing

• Equipment validation and diagnostics

• Thermal performance analysis

Its compact design and secure mounting make it particularly useful in confined or high-vibration environments.

Why Choose an RTD for Surface Measurement?

RTDs offer several advantages over thermocouples in certain applications:

• Higher accuracy

• Better long-term stability

• More linear output

• Reduced drift over time

The SMTS-RTD combines these benefits with a secure mounting design for reliable surface measurement.

Key Features at a Glance

• Thin-film platinum PT100 or PT1000 element

• Class A accuracy (±0.15°C)

• Threaded stud mounting for secure installation

• 316 stainless steel construction

• Operating range: –58°F to 400°F

• 2-wire or 3-wire configurations

• PFA insulated lead wires

• IP64 environmental protection

• Made in the USA

A Reliable Solution for Surface Temperature Measurement

The SMTS-RTD Miniature Surface Mount Threaded Stud RTD Sensor provides a high-accuracy, durable, and easy-to-install solution for surface temperature measurement. Its threaded design ensures consistent contact, while its platinum RTD element delivers the precision required for demanding applications.

Optimize Your Temperature Measurement System

Whether you are conducting laboratory testing, monitoring industrial equipment, or validating thermal processes, the SMTS-RTD offers the performance and reliability needed for accurate temperature measurement.

Contact us today to learn more or configure the right RTD sensor for your application.