PT100 RTD 3-Wire Temperature Sensor Probe 1m Range -70 to 300°C - 7Semi

🌡️ PT100 RTD 3-Wire Temperature Sensor Probe (7Semi)
 
🧩 Overview
High-precision RTD (Resistance Temperature Detector) sensor
Uses platinum (Pt100) sensing element
Measures temperature from -70°C to 300°C
Industrial-grade probe with 1-meter cable
 
⚙️ Working Principle
Platinum element has 100Ω resistance at 0°C
Resistance increases with temperature
Measured resistance → converted to temperature value
3-wire design compensates lead wire resistance errors
 
📊 Key Specifications
🔹 Sensor Type: PT100 RTD (Platinum)
🔹 Temperature Range: -70°C to +300°C
🔹 Accuracy: Class A (±0.15°C typical)
🔹 Resistance: 100Ω at 0°C
🔹 Wire Type: 3-wire configuration
🔹 Probe Material: Stainless steel
🔹 Probe Size: ~2 inch length, ~6 mm diameter
🔹 Cable Length: 1 meter
🔹 Output: Analog resistance
 
🧱 Module Components
Platinum RTD sensing element
Stainless steel probe (waterproof)
3 insulated wires (for compensation)
High-temperature insulated cable
 
🔄 Features
High accuracy & stability (industrial standard)
3-wire compensation reduces measurement error
Excellent linearity over wide temperature range
مقاust design for harsh environments
Long-term low drift performance
 
🛠️ Applications
Industrial temperature control systems 🏭
HVAC systems 🌬️
Laboratory measurements 🧪
Food & chemical processing
IoT and embedded monitoring systems 🌐
 
⚠️ Usage Tips
Requires RTD amplifier module (e.g., MAX31865)
Use proper calibration for high accuracy
Avoid mechanical stress on probe tip
Ensure good thermal contact with measured surface/liquid
 
✅ Advantages
Very high accuracy compared to thermistors
Stable over long periods
Wide temperature range
Industrial reliability
 
⚠️ Limitations
Requires external interface circuit (not plug-and-play)
Slower response than thermocouples
Slightly higher cost than basic sensors
 
🔍 Summary
Industrial-grade temperature sensor using platinum RTD
Provides high accuracy and stability
Uses 3-wire configuration for precise measurement
Best suited for precision and industrial applications