Anonymous
Apr 06, 2026
Rating: 3/5
Documentation could be better
The module works but the pinout diagram on the back was faint. Had to look up the datasheet online to confirm VCC and GND.
Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Chipset Model | MAX6675 / MAX31855 |
| Interface Type | SPI (Serial Peripheral Interface) |
| Operating Voltage | 3.0V to 5.5V DC |
| Temperature Resolution | 0.25°C |
| Measurement Accuracy | ±2°C (typical) |
| Operating Temperature Range | 0°C to +1024°C |
| Cold Junction Compensation | Integrated Internal Compensation |
| PCB Dimensions | 35 x 14 x 5 mm |
| Connection Terminals | Screw Terminal Block |
| Package Weight | 8 grams |
Anonymous
Apr 06, 2026
Rating: 3/5
Documentation could be better
The module works but the pinout diagram on the back was faint. Had to look up the datasheet online to confirm VCC and GND.
Anonymous
Apr 05, 2026
Rating: 4/5
Good accuracy, slow update
The sensor is accurate compared to my multimeter. However, the sampling rate is a bit slow for rapid temperature changes. Good for steady states.
Anonymous
Mar 13, 2026
Rating: 5/5
Solid build quality
PCB looks well manufactured. The screw terminals hold the thermocouple wires securely. No issues with noise so far.
Anonymous
Feb 23, 2026
Rating: 5/5
Perfect replacement
Replaced a faulty sensor in my data logger. Plug and play with existing code. Very satisfied with the performance.
Anonymous
Feb 07, 2026
Rating: 5/5
Excellent for DIY Projects
Used this with an Arduino Uno for a kiln monitor. Readings are stable and the library support is abundant. Highly recommend for hobbyists.
Q: Is cold junction compensation automatic?
A: Yes, the chip has internal cold junction compensation built-in, no external components needed.
Q: What is the sampling rate?
A: The MAX6675 typically converts temperature in about 170ms, giving roughly 5 samples per second.
Q: Can I use this with Raspberry Pi?
A: Yes, it uses SPI interface which is supported by Raspberry Pi GPIO pins. You may need a library.
Q: Does it come with the thermocouple wire?
A: No, this listing is for the amplifier module only. Thermocouple probes are sold separately.
Q: Is this compatible with 3.3V logic?
A: Yes, the module operates between 3.0V and 5.5V, making it suitable for both 3.3V and 5V microcontrollers.