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We have ✅ 1 available of the AF-3290 in our Sydney warehouse. An extra 61 units available with a short lead time.

Express post delivery (2-5 business days)

A platinum resistance temperature detector (RTD) with a 100 Ω resistance at 0°C, offering superior accuracy and long-term stability compared to thermocouples and thermistors. PT100 sensors are widely used in laboratory and industrial temperature measurement where precision and repeatability matter.

This sensor features a stainless steel shield rated for temperatures up to 550°C and a 1-metre lead length with a 3-wire configuration for improved measurement accuracy.

Key Features

  • Platinum Element – 100 Ω at 0°C with a temperature coefficient of 0.385 Ω/°C
  • High Accuracy – More precise and repeatable than thermocouples or thermistors
  • Stainless Steel Probe – Rated up to 550°C
  • 3-Wire Configuration – Third wire enables lead resistance compensation for accurate readings
  • 1 m Lead Length – Flexible placement away from the measurement point
Tip: The 3-wire design allows compatible RTD amplifiers (such as the MAX31865) to compensate for lead wire resistance. If your amplifier only supports 2-wire connections, leave the third wire disconnected.

Specifications

  • Sensor Type – PT100 (platinum RTD)
  • Resistance at 0°C – 100 Ω
  • Temperature Coefficient – 0.385 Ω/°C
  • Max Temperature – 550°C
  • Wiring – 3-wire
  • Lead Length – 1 m
  • Probe Material – Stainless steel

Ideal For

  • Precision temperature measurement in lab and industrial settings
  • High-temperature monitoring (up to 550°C)
  • Arduino and Raspberry Pi projects with an RTD amplifier breakout
  • Food processing, HVAC, and environmental monitoring

Package Contents

  • 1× PT100 Platinum RTD Sensor (3-wire, 1 m lead)

The Platinum RTD Sensor - PT100 - 3 Wire 1 meter long appears in the following collections:

SKU AF-3290