MAX31865 Thermostat Precision Temperature Controller

High-Precision RTD Signal Conditioning: Built around the MAX31865 RTD-to-digital converter IC for ultra-precise platinum resistance temperature detector (PT100/PT1000) processing.

5-Digit LED Telemetry Display: Vibrant 5-digit digital LED screen provides high-resolution, real-time temperature readings and precise parameter configuration access.

Multi-Wire RTD Sensor Support: Designed with configurable terminal blocks to easily interface with 2-wire, 3-wire, or 4-wire PT100 RTD temperature sensors.

SPI Digital Interface & Relay Output: Features standard SPI communication capability for MCU integration along with an onboard switching relay to trigger external heating/cooling elements.

Wide Industrial Sensing Range: Capable of measuring extreme temperature ranges from -200°C to +500°C with 0.1°C resolution, ideal for demanding thermal processes.

Board Material: High-grade FR-4 glass-epoxy PCB with precision SMD components, high-brightness 5-digit LED module, and heavy-duty screw terminals.

Technical Specifications:

Supported Sensor Types: PT100 / PT1000 RTD probes.

ADC Resolution: 15-bit ADC (0.03125°C resolution).

Temperature Range: -200°C – +500°C.

Board Color: Purple / Black PCB.

Usage Advice: Verify proper RTD sensor wiring configuration (2-wire, 3-wire, or 4-wire jumper settings) prior to applying logic power.

Maintenance: Keep the PCB assembly dry and clean using isopropyl alcohol to prevent surface leakage currents across sensitive analog sense lines.

Essential Precision Thermal Controller: Position as a professional laboratory-grade thermal controller for high-accuracy heating mantles, industrial ovens, cryogenics, and food processing systems.

Highlight PT100 RTD Accuracy: Emphasize how the dedicated MAX31865 RTD amplifier eliminates thermistor non-linearity and drift for scientific-grade temperature measurement.

Recommended Cross-Sell Add-ons: Pair with REX-C100 Temperature Controller SSR 220V Output, DTC1201 Digital Thermostat Temperature Controller, 220AC 10A Digital Thermostat + NTC Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Thermostats collection page as your high-precision PT100 RTD thermostat module.