MAX31855 Thermocouple Temperature Measuring Module

The module can convert ambient temperature into a temperature compensation voltage using an internal temperature sensing diode. Internally, it has a signal conditioning amplifier that converts the thermocouple signal to a voltage compatible with the ADC input channel The T inputs are connected to a low-noise A1 amplifier to ensure high detection input accuracy while isolating the thermocouple connecting wire from the noise source. It has a 14-bit thermocouple analog-to-digital converter, cold junction compensation detection and correction, digital controller, 1 SPI compliant interface and 1 associated control logic. The measurement temperature range is -200°C~+1350°C, accuracy 0.25°C.

Works with any K-type thermocouple.

Comes with a 2 pin terminal block (for connecting a thermocouple) and pin header (to plug into any MCU). Technical data: Temperature measurement range: -200°C~+1350°C Interface type: SPI interface, high-speed transmission Operating voltage: 3-5VDC Resolution: 14-bit resolution Accuracy: 0.25℃