PT100 Temperature Sensor Probe - Platinum RTD for Precision Sensing
PT100 Temperature Sensor Probe
The PT100 is a platinum resistance temperature detector (RTD) that offers high accuracy and stability over a wide temperature range. It is widely used in industrial, laboratory, and DIY automation projects where precise temperature monitoring is essential. The 3‑wire probe design simplifies integration with microcontroller‑based systems.
Key Specifications
| Specification | Value |
|---|---|
| Sensor Type | Platinum RTD (PT100) |
| Resistance at 0°C | 100 Ω |
| Temperature Range | ‑50°C to +500°C |
| Accuracy | Class B (±0.3°C at 0°C) |
| Probe Material | Stainless Steel 304 |
| Cable Length | 1.5 metres (shielded) |
What You Can Build With This
- High‑precision laboratory incubator temperature controller
- Industrial oven or furnace temperature monitoring system
- Raspberry Pi weather station with outdoor temperature sensing
- 3D printer heated bed or hotend thermal regulation
Compatibility
The PT100 sensor requires an RTD amplifier or a precise analog front‑end. It works with Arduino and ESP32 boards using the MAX31865 module. It can also be read directly by high‑resolution ADCs on microcontrollers like the Raspberry Pi Pico. For Raspberry Pi single‑board computers, use a dedicated RTD HAT or SPI module.
Wiring Notes
Use a 3‑wire or 4‑wire connection to eliminate lead resistance errors. With the MAX31865 breakout, connect the two red wires to RTD+ and RTD−, and the white wire to the FORCE or RTD− reference. Ensure the reference resistor matches 430 Ω for optimal measurement. Avoid running sensor cables near high‑voltage lines.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3‑5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, it works with Arduino using a MAX31865 RTD amplifier board. The PT100 probe's 3‑wire output connects to the module, and libraries are available for straightforward temperature reading.
Does it come with an amplifier?
No, the sensor probe is supplied without an amplifier. You will need an external RTD‑to‑digital converter such as the MAX31865 to interface with microcontrollers.
What is the maximum cable length?
The probe has a 1.5‑metre shielded cable, but you can extend it up to 10 metres using a 4‑wire configuration without significant accuracy loss.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items