{"product_id":"max31865-rtd-pt100-pt1000-temperature-sensor-module-arduino-raspberry-pi","title":"MAX31865 RTD Temperature Sensor Module — PT100 \/ PT1000 for Arduino \u0026 Raspberry Pi","description":"\u003ch2\u003eMAX31865 RTD Temperature Sensor Module — PT100 \/ PT1000\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMAX31865 module\u003c\/strong\u003e is a precision RTD-to-digital converter that interfaces \u003cstrong\u003ePT100 and PT1000 platinum resistance temperature detectors (RTDs)\u003c\/strong\u003e with any SPI-capable microcontroller. It provides significantly higher accuracy and stability than NTC thermistors or thermocouples in the −200°C to +850°C range, making it the preferred choice for 3D printer heated bed\/hotend monitoring, industrial process control, laboratory temperature logging, and sous vide cooking controllers.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIC\u003c\/td\u003e\n\u003ctd\u003eMAX31865\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCompatible Sensors\u003c\/td\u003e\n\u003ctd\u003ePT100 and PT1000 RTDs (2-wire, 3-wire, 4-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−200°C to +850°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eADC Resolution\u003c\/td\u003e\n\u003ctd\u003e15-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI (4-wire: SCK, SDI, SDO, CS)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFault Detection\u003c\/td\u003e\n\u003ctd\u003eOpen\/short circuit detection with fault register\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose RTD over Thermocouple or NTC?\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003ePT100 RTD (MAX31865)\u003c\/th\u003e\n\u003cth\u003eThermocouple (MAX6675)\u003c\/th\u003e\n\u003cth\u003eNTC Thermistor\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e✅ ±0.5°C\u003c\/td\u003e\n\u003ctd\u003e❌ ±3°C typical\u003c\/td\u003e\n\u003ctd\u003e❌ ±1–3°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e✅ −200 to +850°C\u003c\/td\u003e\n\u003ctd\u003e✅ 0 to +1024°C\u003c\/td\u003e\n\u003ctd\u003e❌ −50 to +150°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eStability\u003c\/td\u003e\n\u003ctd\u003e✅ Excellent long-term\u003c\/td\u003e\n\u003ctd\u003e❌ Drift over time\u003c\/td\u003e\n\u003ctd\u003e❌ Moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCost\u003c\/td\u003e\n\u003ctd\u003e❌ Higher\u003c\/td\u003e\n\u003ctd\u003e✅ Lower\u003c\/td\u003e\n\u003ctd\u003e✅ Lowest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e3D printer heated bed and hotend temperature monitoring (replacement for NTC 100K)\u003c\/li\u003e\n  \u003cli\u003eIndustrial process temperature control and PID loops\u003c\/li\u003e\n  \u003cli\u003eLaboratory temperature data logging\u003c\/li\u003e\n  \u003cli\u003eSous vide and precision cooking temperature controllers\u003c\/li\u003e\n  \u003cli\u003eHVAC and refrigeration system monitoring\u003c\/li\u003e\n  \u003cli\u003eCryogenic temperature measurement (down to −200°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: What is the difference between PT100 and PT1000?\u003c\/h3\u003e\n\u003cp\u003eBoth are platinum RTDs with the same temperature coefficient (0.00385Ω\/Ω\/°C). PT100 has a resistance of 100Ω at 0°C; PT1000 has 1000Ω at 0°C. PT1000 is less sensitive to lead wire resistance, making it better for long cable runs. The MAX31865 module can be configured for either by changing the reference resistor (select the correct module variant).\u003c\/p\u003e\n\n\u003ch3\u003eQ: What Arduino library should I use?\u003c\/h3\u003e\n\u003cp\u003eUse the \u003cstrong\u003eAdafruit MAX31865\u003c\/strong\u003e library, available in the Arduino Library Manager. It supports 2-wire, 3-wire, and 4-wire RTD configurations and includes fault detection handling.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× MAX31865 RTD Amplifier Module (PT100 or PT1000 variant per selection)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1pcs","offer_id":46985503015147,"sku":"14:350852#1pcs","price":21.32,"currency_code":"USD","in_stock":true},{"title":"5pcs","offer_id":46985503047915,"sku":"14:4044226#5pcs","price":82.28,"currency_code":"USD","in_stock":true},{"title":"10pcs","offer_id":46985503080683,"sku":"14:1254#10pcs","price":148.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/max31865-pt100-pt1000-platinum-temperature-sensor-module.webp?v=1761280232","url":"https:\/\/keszoox.com\/products\/max31865-rtd-pt100-pt1000-temperature-sensor-module-arduino-raspberry-pi","provider":"Keszoox","version":"1.0","type":"link"}