Product Description

Features: 

1. Working voltage: DC5V
2. Operating Current: 50mA
3. the temperature measuring range: -200C - 1300 C [Test procedure for 0-1023 C]
4. the temperature measurement accuracy: 1.5 C
5. the temperature resolution: 0.25 C
6. the output mode: SPI digital signal
7. with a fixed mounting holes for easy fixed installation.
8. storage temperature: -50 ~ 150 C
9. the module weight: 4g
10. module size: 25mm * 15mm * 13mm
 

Package included :
1 x New MAX6675 Module + K Type Thermocouple Thermocouple Sensor for Arduino

For example please refer to this link.

Note: The MAX6675 will detect if the thermocouple circuit is open (i.e. not connected). In this case, readC() or readF() will return a negative number. This does not cause confusion with actual temperature readings since the MAX6675 only reads down to 0°C (32°F).