NTC temperature sensor Dixell/Carel Tefcold SpareParts 13896

A temperature probe measures the heat or cold in refrigeration units, ovens, and climate systems by changing its electrical resistance as the temperature shifts. This NTC (Negative Temperature Coefficient) probe lowers its resistance when the temperature rises, allowing the connected controller to read the exact value and adjust cooling, heating, or defrost cycles automatically. The 10 kΩ resistance at a standard reference point ensures compatibility with Dixell and Carel control systems, which rely on this specific resistance curve to maintain accurate setpoints and prevent food spoilage or equipment damage.

To use the probe, the operator inserts its sensing tip into the medium—air in a cold room, liquid in a tank, or the interior of a cooking appliance. The probe connects to the controller via a cable, which carries the resistance signal back to the control board. The controller then compares the reading to the programmed setpoint and activates compressors, heaters, or fans as needed. The probe's response curve is calibrated so that small temperature changes produce measurable resistance shifts, giving the system the precision required for professional catering environments.

The probe is designed for direct replacement in equipment where Dixell or Carel controllers are installed. Its construction ensures stable readings over time, reducing the risk of drift that could lead to incorrect temperature control. Regular inspection of the probe tip and cable for damage or contamination helps maintain accuracy, as debris or moisture can interfere with the resistance signal. If the controller displays erratic readings or fails to hold temperature, the probe is often the first component to check, as its performance directly affects the entire control loop.

This probe fits Dixell and Carel controllers used in refrigeration, cooking, and climate systems across professional kitchens, food storage facilities, and processing plants. It is listed in the spares section for temperature sensing components.