Description: Operating voltage: 3. 0 ~ 5. 5V Internal integrated cold junction compensation circuit; With a simple three serial interface; Temperature signal can be converted into 12-bit digital MAXIM MAX6675 is an American company with a cold junction compensation, linearity correction, thermocouple break detection ADC Serial type thermocouple, its temperature resolution capability is 0. 25 Degree, cold junction compensation range - 20 ~ + 80 Degree, wide operating voltage range 3. 0 ~ 5. 5V Temperature resolution of: 0. 25 Degree; Cold junction compensation range: - 20 ~ + 80 Degree, Embedded thermocouple break detection circuitry. Using SPI 3 wire communication type temperature probe Type temperature range 0-800 degrees