RTD Temperature Sensor - Image 1 - Industrial Heating Element by Subhot Enterprises
RTD Temperature Sensor - Image 2 - Industrial Heating Element by Subhot Enterprises
RTD Temperature Sensor - Image 3 - Industrial Heating Element by Subhot Enterprises
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Key Features & Benefits

Ultra-fast response times with thin-walled sheaths (0.5-5 seconds)
Superior accuracy ±0.1°C (Class A) with long-term stability
Rugged, corrosion-resistant construction for harsh environments

RTD Temperature Sensor

Temperature Sensors Made in India ISO 9001:2015

RTD (Resistance Temperature Detector) sensors represent the pinnacle of precision temperature measurement technology, utilizing the predictable and linear relationship between platinum resistance and temperature to deliver unmatched accuracy and stability across extreme temperature ranges from –200°C to 850°C. These sophisticated temperature sensors are manufactured using high-purity platinum wire wound on ceramic substrates or thin-film deposition techniques, ensuring exceptional repeatability, long-term stability, and minimal drift characteristics essential for critical industrial and laboratory applications.

Available in standard configurations including PT100 (100Ω at 0°C), PT200 (200Ω at 0°C), PT500 (500Ω at 0°C), and PT1000 (1000Ω at 0°C) elements, our RTD sensors feature advanced construction designs optimized for specific applications. Industrial-grade versions incorporate rugged stainless steel or Inconel sheaths with MgO mineral insulation for harsh process environments, while laboratory-grade sensors utilize precision glass or ceramic housings for ultra-stable measurements in controlled conditions.

The sophisticated wire configuration options including 2-wire (basic applications), 3-wire (standard industrial use with lead resistance compensation), and 4-wire (high-precision laboratory applications with complete lead resistance elimination) ensure optimal measurement accuracy for diverse installation requirements. Advanced manufacturing processes ensure Class A (±0.15°C at 0°C) and Class B (±0.30°C at 0°C) accuracy grades conforming to IEC 60751 international standards.

Engineered for demanding applications in plastic processing, HVAC systems, chemical manufacturing, food and beverage processing, pharmaceutical production, power generation, and precision laboratory instrumentation, these RTD sensors deliver superior thermal response characteristics with thin-walled sheath designs enabling response times as fast as 0.5 seconds. The corrosion-resistant construction ensures reliable operation in aggressive chemical environments, steam applications, and corrosive process fluids.

Advanced integration capabilities include weatherproof IP65/67 connection heads, explosion-proof enclosures for hazardous area installations, integrated temperature transmitters for 4-20mA output signals, and comprehensive thermowell compatibility for high-pressure and high-velocity applications. Custom configurations enable application-specific solutions including surface-mounted sensors, magnetic base assemblies, spring-loaded probes, and specialized mounting arrangements optimized for unique industrial requirements.

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Components of RTD Temperature Sensor

Precision Platinum Sensing Element

High-purity platinum coil or thin-film element (PT100/PT200/PT500/PT1000) manufactured to IEC 60751 standards for exceptional linearity, stability, and repeatability in temperature measurement applications.

Advanced Insulation System

Compacted high-purity MgO powder, PTFE, or fiberglass insulation providing superior electrical isolation, thermal conduction, and moisture resistance for reliable long-term operation.

High-Performance Sheath Construction

Precision-drawn thin-walled 316SS, Inconel 600, or Hastelloy tube construction optimized for rapid thermal response, superior corrosion resistance, and mechanical durability.

Professional Connection Head

IP65-rated aluminum or stainless steel terminal housing with precision ceramic terminal block, weatherproof cable gland, and optional integrated transmitter mounting space.

Engineered Extension System

PTFE or PVC insulated extension leads in shielded or unshielded configurations with precision wire matching for accurate temperature transmission and electromagnetic interference protection.

Technical Specifications

Detailed technical specifications for RTD Temperature Sensor with industry-leading performance standards

Product Specifications

Complete technical details and performance parameters

Parameter Specification
Element Types
Primary specification
PT100, PT200, PT500, PT1000 (high-purity platinum)
Temperature Range
–200°C to +850°C (application dependent)
High performance
Accuracy Classes
Class A (±0.15°C) / Class B (±0.30°C) at 0°C
Wire Configurations
2-wire, 3-wire, 4-wire with lead resistance compensation
Sheath Materials
SS304/316/316L, Inconel 600/625/800, Hastelloy, PTFE
Premium quality
Insulation Options
High-purity MgO powder, PTFE, Fiberglass, Ceramic
Response Time
0.5 to 5 seconds (design and application dependent)
Process Connections
Compression fitting, flanged, thermowell compatible
Protection Rating
IP65/IP67 (weatherproof and explosion-proof options)
Probe Diameter
1.5mm to 12mm (custom sizes available)
Insertion Length
50mm to 3000mm (application optimized)
Conformity Standards
IEC 60751, DIN EN 60751, ASTM E1137
Drift Characteristics
<0.1°C per year (typical in stable conditions)
Vibration Resistance
Up to 30g acceleration (shock and vibration tested)
All specifications are subject to customization based on application requirements.
ISO 9001:2015 CE Marked RoHS Compliant

Industrial Applications

Discover how RTD Temperature Sensor delivers superior performance across diverse industrial sectors

Popular

Plastic processing and injection molding temperature control

Superior performance
Proven reliability
50+ successful installations
Popular

HVAC systems and building automation temperature monitoring

Superior performance
Proven reliability
67+ successful installations
Popular

Chemical and petrochemical process temperature measurement

Corrosion resistant
Safety certified
84+ successful installations

Food and beverage processing hygiene-critical applications

Hygienic design
Temperature accuracy
101+ successful installations

Pharmaceutical manufacturing and validation systems

Superior performance
Proven reliability
118+ successful installations

Power generation boiler and turbine temperature monitoring

Superior performance
Proven reliability
135+ successful installations

Laboratory and research precision temperature measurement

Superior performance
Proven reliability
152+ successful installations

Industrial process control and automation systems

Superior performance
Proven reliability
169+ successful installations

Steam and hot water system temperature monitoring

Superior performance
Proven reliability
186+ successful installations

Cryogenic and ultra-low temperature applications

Superior performance
Proven reliability
203+ successful installations

Heat treatment and furnace temperature control

Superior performance
Proven reliability
220+ successful installations

Environmental monitoring and weather stations

Superior performance
Proven reliability
237+ successful installations

Marine and offshore platform temperature sensing

Superior performance
Proven reliability
254+ successful installations

Automotive testing and component validation

Reliable performance
Quality consistency
271+ successful installations

Trusted Across Industries

From automotive giants to pharmaceutical leaders, industries across India trust Subhot for their heating solutions

Steel & Metal

Automotive

Chemical

Food & Beverage

Pharmaceutical

Research Labs

Key Features & Benefits

Experience the superior features that make RTD Temperature Sensor the preferred choice for industrial heating

Superior long-term stability with minimal calibration drift

Quality engineering for reliable performance.

Wide selection of probe diameters (1.5–12 mm) and lengths up to 3000mm

Quality engineering for reliable performance.

Custom temperature calibration certificates available

Precise temperature control for consistent results.

Interchangeable connection heads and terminal configurations

Quality engineering for reliable performance.

Exceptional repeatability and measurement consistency

Quality engineering for reliable performance.

Optional integrated 4-20mA transmitters and signal conditioners

Quality engineering for reliable performance.

Comprehensive thermowell compatibility for high-pressure applications

Quality engineering for reliable performance.

Advanced sheath materials for corrosive environment compatibility

Quality engineering for reliable performance.

Fast thermal response optimized probe tip designs

Quality engineering for reliable performance.

Explosion-proof and flameproof certifications available

Quality engineering for reliable performance.

Spring-loaded and surface-mounted configuration options

Even heat distribution across surface.

Digital communication protocol compatibility (HART, Modbus)

Quality engineering for reliable performance.

Custom engineering for OEM and specialized applications

Quality engineering for reliable performance.

Comprehensive technical support and application assistance

Quality engineering for reliable performance.

Frequently Asked Questions

An RTD (Resistance Temperature Detector) is a precision temperature sensor that measures temperature by correlating the predictable resistance change of a platinum element with temperature. RTDs provide exceptional accuracy (±0.1°C), superior stability, and excellent repeatability across wide temperature ranges, making them ideal for critical industrial processes and laboratory applications where precise temperature control is essential.
PT100 refers to a platinum RTD sensor with exactly 100 ohms resistance at 0°C, representing the most widely used RTD configuration in industrial applications worldwide. The PT100 standard ensures interchangeability, consistent performance, and compatibility with virtually all temperature measurement and control systems, making it the preferred choice for industrial process monitoring and control.
Subhot RTD sensors operate across ultra-wide temperature ranges from -200°C to +850°C depending on element type, sheath material, and construction design. Class A sensors provide ±0.15°C accuracy while Class B sensors offer ±0.30°C accuracy at 0°C, with superior long-term stability and minimal drift ensuring consistent performance throughout their operational life.
RTDs are extensively used in plastic processing and injection molding, HVAC and building automation, chemical and petrochemical industries, food and beverage processing, pharmaceutical manufacturing, power generation, laboratory instrumentation, and precision manufacturing where accurate temperature monitoring, superior stability, and reliable performance are critical for product quality and process control.
RTDs offer significantly higher accuracy, superior long-term stability, better repeatability, minimal drift, and excellent linearity compared to thermocouples. RTDs provide more stable readings, require less frequent calibration, and offer superior performance in the critical -50°C to 500°C range where most industrial processes operate, making them ideal for precision temperature control applications.
Our RTD sensors utilize high-purity platinum elements (PT100, PT200, PT500, PT1000) offering the most linear resistance-temperature relationship and exceptional chemical stability. Alternative materials include nickel and copper elements for specialized applications, with platinum RTDs providing the best combination of accuracy, stability, and temperature range for demanding industrial applications.
We manufacture comprehensive RTD configurations including simplex and duplex elements, mineral-insulated (MI) probes, spring-loaded assemblies, surface-mounted sensors, and threaded RTD probes. Wire configurations include 2-wire (basic), 3-wire (standard industrial), and 4-wire (high-precision laboratory) designs optimized for specific accuracy requirements and installation conditions.
2-wire RTDs are suitable for basic applications where lead resistance is negligible, 3-wire configurations provide balanced lead resistance compensation for standard industrial use, and 4-wire RTDs eliminate lead resistance entirely for the highest precision measurements. 3-wire and 4-wire configurations ensure accurate readings regardless of lead wire length and resistance.
Yes, Subhot specializes in custom RTD sensor manufacturing including specific lengths, diameters, sheath materials, mounting styles, thread configurations, and cable specifications tailored to your unique application requirements. Our engineering team provides complete design support, prototyping, and testing to ensure optimal performance in your specific operating conditions.
RTD probe sheaths are manufactured from SS304 (general purpose), SS316/316L (corrosive environments), Inconel 600/625 (high-temperature oxidizing conditions), Hastelloy (severe corrosive chemicals), and PTFE (low-temperature chemical compatibility) selected based on specific chemical compatibility, operating temperature, and mechanical requirements.
Yes, we provide RTDs with weatherproof heads (IP65/IP67), flameproof enclosures for hazardous areas, M12 connectors for quick disconnect, thermowell compatibility for high-pressure applications, and integrated 4-20mA transmitters for direct PLC and SCADA system integration without external signal conditioning.
Yes, we manufacture specialized surface-mounted RTDs with flat-tip designs, magnetic base assemblies for ferrous surfaces, spring-loaded contact sensors, and clamp-on configurations optimized for pipe surface temperature monitoring, equipment surface sensing, and non-immersion applications requiring accurate surface temperature measurement.
Yes, we offer RTD sensors with in-head mounted temperature transmitters, DIN rail transmitters, wireless communication modules, and digital communication protocols providing 4-20mA, 0-10V, HART, Modbus, and Profibus outputs for seamless integration with modern process control systems, PLCs, DCS, and SCADA networks.
We manufacture Class A RTDs providing ±0.15°C accuracy and Class B RTDs offering ±0.30°C accuracy at 0°C conforming to IEC 60751, DIN EN 60751, and ASTM E1137 international standards. Custom calibration certificates, NIST traceability, and precision calibration services are available for critical measurement applications.
Our RTDs provide exceptionally fast response times ranging from 0.5 to 5 seconds depending on probe tip design, immersion depth, fluid velocity, and thermal mass. Thin-walled sheaths, reduced tip designs, and optimized thermal coupling ensure rapid temperature response for dynamic process control applications.
Yes, RTDs with specialized sheath materials including 316L stainless steel, Inconel, Hastelloy, or PTFE construction combined with chemical-resistant thermowell protection are specifically engineered for corrosive chemicals, aggressive process fluids, and hostile industrial environments while maintaining measurement accuracy and sensor integrity.
Subhot RTDs deliver 5 to 10+ years of reliable service with proper installation, operation within rated parameters, and appropriate maintenance. High-quality platinum elements, precision manufacturing, and robust construction ensure extended operational life, reduced replacement costs, and consistent measurement performance throughout their service life.
Yes, all RTD temperature sensors are designed, manufactured, and quality tested at our state-of-the-art Ghaziabad manufacturing facility using advanced production techniques, stringent quality control processes, and comprehensive testing protocols ensuring reliable performance, fast delivery across India, and export quality standards for international markets.
Key industries include plastic extrusion and injection molding, pharmaceutical and biotech manufacturing, power generation and utilities, cement and steel production, chemical and petrochemical processing, HVAC and building systems, food and beverage processing, and OEM machinery integration where precision temperature measurement and reliable performance are essential.
Contact our technical sales team at +91-9999710410 or email sales@subhotheaters.com with your specific requirements including temperature range, accuracy requirements, mounting configuration, process conditions, and environmental specifications. Our application engineers provide comprehensive technical support, custom design services, and competitive quotations for your RTD sensor requirements.

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