XIQI Electric CG-WRNT-03 K-Type Thermocouple Probe Sensor, M8 Thread, 5x50mm, 3M Cable, 0-600°C

The CG-WRNT-03 provides a raw analog millivolt output signal specific to K-type thermocouples. This low-level voltage must be connected to a compatible thermocouple amplifier, transmitter, or controller that includes cold-junction compensation (CJC) to convert the signal into an accurate temperature reading for your PLC or data acquisition system.

No, you cannot connect it directly. The millivolt signal requires signal conditioning. You need an external thermocouple amplifier module (e.g., with a MAX6675 or MAX31855 chip) that provides cold-junction compensation and outputs a digital signal (SPI) or amplified analog voltage compatible with your microcontroller's ADC input range.

The sensor is rated for continuous operation within its specified range of 0°C to 600°C. The stainless steel sheath and internal insulation are designed to withstand this upper limit. For longevity, avoid thermal cycling beyond these extremes and ensure the probe is properly mounted to minimize mechanical stress.

Installation requires a pre-tapped M8 threaded hole in your equipment. Apply a high-temperature thread sealant or PTFE tape if a gas/liquid seal is needed. Tighten the probe securely using a wrench on the CubePilot section (if present) to ensure good thermal contact, but avoid over-torquing to prevent damage to the threads or probe stem.