
This product works great. The reading at 1/2 second interval fluctuates around 0.75ยฐC. But the average is accurate on my Fluke 54. The grub screw on my sensor is 6mm. Warning: Arduino users: DO NOT use the Adafruit library with this. That does not work. Use the Spi hardware library called "MAX6675 Thermocouple", it appears in the default library manager. I suspect these were some of the issues encountered by other negative reviewers.