XIQI Electric CG-WRNT-01 K-Type Thermocouple Sensor, 0-600°C, M12 Thread, 2m Cable

This sensor has an integrated 2-meter cable terminating in bare wires for the thermocouple leads (positive and negative). It is designed for direct wiring into the screw terminals of a compatible temperature controller, PLC analog input module, or data logger that accepts raw Type K thermocouple signals. The probe itself features an M12 threaded housing for physical mounting.

The CG-WRNT-01 is rated for continuous measurement from 0°C up to 600°C. The stainless steel probe sheath provides protection against oxidation and corrosion in typical industrial atmospheres found in ovens, kilns, and furnaces. Ensure the installation environment does not exceed the cable's rated temperature, typically lower than the probe's maximum.

Yes. Microcontrollers like Arduino or Raspberry Pi cannot directly read the small millivolt signal from a thermocouple. You will need a dedicated thermocouple amplifier module (e.g., with a MAX6675 or MAX31855 chip) that provides cold-junction compensation and outputs a digital signal (SPI) compatible with your development board. Direct connection is only for industrial controllers with built-in thermocouple input circuits.

Type K (Nickel-Chromium / Nickel-Alumel) is the most common general-purpose thermocouple, offering a good balance of wide temperature range (-200°C to +1260°C for some grades), durability, and cost-effectiveness. It differs from types like J (Iron-Constantan) or T (Copper-Constantan) in its composition, output voltage curve, and optimal temperature range. Always match the sensor type to your instrument's input setting.