1.Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. 2.This protuct does everything for you, and can be easily interfaced with any microcontroller, even one without an analog input. 3.This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry, 4.Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any breadboard or perfboard). Description 1. measurement temperature range: 200 degrees Celsius to 1350 degrees Celsius above 2. SPI interfaces, high-speed transmission 3. the input voltage is 3-5v DC 4. direct digital output temperature value, no amplifiers, no 5. 14-bit resolution, 0.25 degree temperature accuracy Note 1.Works with any K type thermocouple 2 K thermocouples have about 2C to 6C accuracy 3.Internal temperature reading 4. 3 to 5v power supply and level compliant 5. SPI data output requires any 3 digital I/O pins. Material: PC+Metal colour: as shown Package Contents: 1 x MAX6675 Module Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.