RTD PT100 / PT1000 Temperature Sensor

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Product Overview

Our RTD (Resistance Temperature Detector) Sensors — in PT100 (100Ω at 0°C) and PT1000 (1000Ω at 0°C) configurations — deliver the highest accuracy and best long-term stability of any industrial temperature sensor, conforming to IEC 60751 Class A (±0.15°C at 0°C) or Class B (±0.3°C at 0°C) tolerances. Unlike thermocouples that generate a millivolt signal requiring compensation, PT100/PT1000 sensors produce a resistance change that is highly linear and inherently stable over time, making them the preferred choice in GMP-regulated pharmaceutical manufacturing, precision laboratory equipment, food processing, and any application demanding measurement accuracy better than ±1°C over the long term.

Technical Specification Sheet

Parameter	Detail
Sensor Type	PT100 (100Ω/0°C) or PT1000 (1000Ω/0°C)
Temperature Range	−200°C to +600°C (thin film); −200°C to +850°C (wire wound)
Accuracy Class	Class AA (±0.1°C), Class A (±0.15°C), Class B (±0.3°C) per IEC 60751
Construction	Thin-film element or Wire-wound element (MI sheath)
Wiring Configuration	2-wire, 3-wire, or 4-wire (Kelvin connection for highest accuracy)
Sheath Material	Stainless Steel 316L (standard), Inconel 600 (high temp)
Sheath Diameter	3 mm, 4.5 mm, 6 mm, 8 mm
Output Option	Direct resistance (Ω) or 4-20mA with integrated transmitter head

Key Features

Highest accuracy class available: IEC 60751 Class AA (±0.1°C at 0°C) for critical measurement applications.
4-wire connection eliminates lead resistance errors, achieving true sensor accuracy over long cable runs.
Excellent long-term stability — typically less than ±0.05°C drift per year under stable process conditions.

Typical Use Cases

Pharmaceutical GMP Manufacturing: Clean steam, WFI water, and API reactor temperature monitoring where accuracy traceability is regulatory mandatory.
Food & Beverage: Pasteurization and sterilization process temperature control requiring ±0.5°C or better accuracy.
Laboratory & Calibration: Reference standard thermometry and calibration bath temperature measurement.
HVAC Precision Control: Data center cooling and precision climate control requiring stable, drift-free temperature feedback.
Industrial Automation: PLC-based temperature control loops where analog thermocouple signals would introduce unacceptable noise or CJC uncertainty.

Competitive Benefits

Best-in-Class Accuracy: Class A (±0.15°C) and Class AA (±0.1°C) far exceed the accuracy of equivalent thermocouple sensors, eliminating the need for field correction factors.
Superior Long-Term Stability: Platinum resistance elements exhibit negligible drift under normal operating conditions, reducing recalibration frequency and lifetime ownership cost.
High Linearity: PT100/PT1000 output is highly linear across the operating range, simplifying signal processing in PLCs without complex polynomial correction algorithms.
Noise Immunity: Resistance-based measurement is significantly less susceptible to electromagnetic interference than millivolt thermocouple signals in industrial environments.
PT1000 Advantage: The higher base resistance of PT1000 further reduces lead resistance error, making 2-wire configurations more viable and reducing system cost in installations where 4-wire cabling is impractical.

Payment and Shipping Details

We accept T/T, L/C at sight, and Western Union for international orders. Standard shipping is FOB Shanghai/Ningbo or CIF destination port. Standard PT100 Class B thin-film sensors in common sheath lengths ship within 5–7 working days. Class A and Class AA wire-wound sensors and integrated 4-20mA transmitter assemblies require 10–15 working days for final calibration. All PT100/PT1000 sensors are individually calibrated and supplied with a calibration certificate showing resistance values at 0°C, 100°C, and an additional point, traceable to national measurement standards.

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RTD PT100 / PT1000 Temperature Sensor Manufacturers

Wuxi Huihua Special Instrumentation Co., Ltd. was established in December 2001, the registered capital is 5 million yuan, the existing staff of more than 50 small and medium-sized joint-stock enterprises.
The company specialises in the production of various types of special instruments, alternative to the localisation of imported instruments.To seismic pressure gauge, seismic electric contact pressure gauge, stainless steel pressure gauge, diaphragm corrosion-resistant pressure gauge, marine pressure gauge and other series as the main products. On the basis of field instruments, we have developed various kinds of pressure transmitters, pressure controllers, digital pressure gauges and so on. There are more than 30 series and 3000 specifications. Products are widely used in petroleum, chemical, paper, metallurgy, mining, chemical fibre, electric power, food, environmental protection, rubber and plastic, hydraulics and many other industries, and more than 2,000 domestic customers to establish a friendly relationship with the national large and medium-sized enterprises to establish a good partnership, won the majority of users praise, and set up a corporate brand image.