🌡️ HiLetgo MAX6675 Thermocouple Temperature Arduino: Precise Temperature Monitoring for Arduino Projects Review

It works great, but it's not a real MAX6675 chip. This is a scammer. Pictured is a real chip, not exactly what you get but it works the same. I tested it on the board it appeared on, it seemed to work. I unsoldered it and replaced it on my 3D printer motherboard, everything worked like clockwork. Then I checked the thermocouple and got decent results, close enough to within about 240 degrees Celsius, which I think is normal. Remember, you pay a few bucks for these parts. If you're expecting…

I have ordered two of these. Both boards work as advertised. I checked the boards with another thermocouple on the soldering iron tip. The temperature of the bite was around 280°C and I compared this to another device that also showed a temperature of around 280°C. The included thermocouple failed my soldering tip test. A minute later the temperature only rose to 180C. Then I realized I was comparing to tiny bead sensors and that wasn't fair. I lit my heat gun and placed the entire sensor body…

This is a pretty good little thermocouple. Once connected and with the MAX6675 library it works fine. Because of the chipset, they really update the data every 300ms and read it in 0.25C increments. You can conduct a difficult survey, you just won't get any new value from it. It looks like the thermocouple itself is almost dead. Immersing the tip in ice water reveals a low temperature of -30 degrees Fahrenheit. Heated with a lighter, it reaches 300F. I didn't go any further. The project really…