+86 189 8978 2810

+86 189 8978 2810

WRNT-01 Spring Loaded Thermocouple (K/E Type) / Pt100 RTD Sensor

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Vibration-Resistant Surface Contact: Spring-loaded bayonet design ensures constant, optimal contact for fast response (≤20s) and accurate readings.

Broad Compatibility: Available in K, E, J thermocouples and Pt100 RTDs for versatile industrial applications.

Durable Construction: Stainless steel probe delivers outstanding corrosion resistance and long-term stability.

Standard Industrial Mounting: M12×1.5 threaded connector allows easy, secure installation in machinery, molds, and HVAC systems.

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DETAILS FAQS

Application

Plastic & Polymer Machinery

Ideal for injection molding machines, extruders, and blow molding equipment, ensuring precise temperature monitoring for molten materials and barrel heaters.

Mold & Thermal Control Systems

Optimized for mold temperature controllers and hot runner systems, featuring a spring-loaded probe that maintains tight contact with die surfaces under high vibration.

Process & Pipeline Systems

Designed for surface temperature sensing on chemical pipelines, heat exchangers, and industrial heating/cooling loops with fast thermal response.

HVAC & Industrial Automation

Widely integrated into HVAC ducting, automated assembly lines, and power equipment for real-time thermal management and equipment protection.

R&D & Testing Facilities

Perfect for laboratory testing rigs, energy storage systems, and pilot plants requiring highly reliable, customizable temperature logging.

Description

Description Background

The WRNT-01 & WZPT-01 Series offers industrial-grade bayonet spring-loaded temperature probes for accurate surface temperature measurement in process control applications. Designed with an adjustable spring tension system, these sensors eliminate air gaps between the probe tip and the measured surface, maximizing heat transfer and measurement precision.

Whether you require a K-type thermocouple (WRNT-01) for mid-to-high temperatures or a Pt100 RTD sensor (WZPT-01) for high-accuracy low-to-medium temperature sensing, this versatile series delivers exceptional durability. Constructed with corrosion-resistant stainless steel and an M12×1.5 mounting thread, it excels in high-vibration equipment such as plastic processing machinery, mold temperature controllers, and heating manifolds.

Features

01DEPENDABLE
Spring-loaded bayonet mechanism maintains tight, continuous contact with target surfaces, eliminating measurement errors under heavy vibration.
Vibration-Resistant Surface Contact
Vibration-Resistant Surface Contact
02EFFICIENT
Engineered for low thermal resistance, delivering fast (≤20s) and highly accurate temperature readings in real-time.
Rapid Thermal Response
Rapid Thermal Response
03SECURE
Premium stainless steel probe offers exceptional durability, mechanical strength, and outstanding corrosion resistance for harsh environments.
Rugged Stainless Steel Build
Rugged Stainless Steel Build
04CONVENIENT
Standard M12×1.5 threaded connector combined with a compact design enables fast, secure installation on molds, pipelines, and machinery.
Universal & Easy Mounting
Universal & Easy Mounting

Technical Details

Product Type:

Temperature Sensor

Product Model:

WRNT-01 / WZPT-01 / WRET-01 / WRJT-01 / WZCT-01

Material:

Stainless Steel Probe + Industrial Cable

Size:

Length 64mm × Diameter 5mm

Type

Spring-Loaded Temperature Sensor (Thermocouple / RTD)

Measuring Range:

-50°C to 200°C

Structure:

Spring-Loaded Probe Type

Probe Material:

Stainless Steel (Φ5mm)

Connection Type:

M12×1.5 Threaded Mounting

Weight:

Approx. 80g

Response Time:

≤20s

Measuring Medium:

Surface / Solid / Mold / Pipe / Gas / Liquid (Non-corrosive)

Accessories

We reserve the right to make technical alterations without prior notice.

What is the difference between WRNT-01 and WZPT-01?

The WRNT-01 is a spring-loaded thermocouple available in K, E, and J calibration types, while the WZPT-01 is a spring-loaded RTD temperature sensor that uses a PT100 platinum resistance element. Thermocouples are generally suitable for wider temperature ranges, while PT100 sensors provide higher accuracy and stability.

What sensor types are available in this series?

This series supports multiple sensing elements, including: K Thermocouple (WRNT-01) E Thermocouple (WRET-01) J Thermocouple (WRJT-01) PT100 RTD (WZPT-01) Cu50 RTD (WZCT-01) Users can select the appropriate model according to their application requirements.

Why does the sensor use a spring-loaded design?

The spring-loaded structure maintains continuous contact between the probe tip and the measured surface, improving heat transfer efficiency, measurement accuracy, and response speed.

What is the temperature measurement range of the WZPT-01?

The WZPT-01 PT100 model has a measurement range of -50°C to 200°C, making it suitable for most industrial temperature monitoring applications.

What is the response time of the sensor?

The thermal response time is ≤20 seconds, allowing the sensor to quickly detect temperature changes and provide reliable readings.

What material is used for the probe?

The probe is made of stainless steel, offering excellent corrosion resistance, mechanical strength, and long service life in industrial environments.

What are the dimensions of the WZPT-01?

The standard dimensions are: Probe Length: 64 mm Probe Diameter: 5 mm The compact design allows installation in limited spaces.

What is the thread specification?

The sensor adopts a fixed threaded connection of M12 × 1.5, ensuring secure and stable installation on equipment and machinery.

What applications are suitable for this sensor?

Typical applications include: Injection molding machines Heating equipment Mold temperature control Industrial automation systems Packaging machinery HVAC systems Process temperature monitoring Laboratory equipment

Can the sensor be used in vibrating environments?

Yes. The spring-loaded structure helps maintain stable contact under vibration conditions, making it suitable for industrial machinery and equipment with mechanical movement.

What is the difference between PT100 and Cu50 sensors?

PT100 sensors provide higher accuracy, better stability, and wider industrial acceptance. Cu50 sensors are more economical and are commonly used in basic temperature measurement applications.

Can the sensor be connected directly to a PLC?

The WZPT-01 outputs a resistance signal (PT100 or Cu50), while the WRNT-01 outputs a thermocouple signal. If the PLC does not support these inputs directly, a temperature transmitter may be required to convert the signal to 4–20mA, 0–10V, or RS485.

Is customization available?

Yes. Customized probe lengths, cable lengths, thread types, sensing elements, and connection methods can be provided according to specific application requirements.

How should the sensor be maintained?

Regularly inspect the probe and connection threads for contamination, looseness, or mechanical damage. Keeping the sensing surface clean helps maintain measurement accuracy and prolong service life.

Is this sensor suitable for long-term industrial operation?

Yes. The stainless steel construction, spring-loaded design, and industrial-grade sensing elements are designed for reliable long-term operation in industrial temperature measurement and control systems.

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