Product Information: The 629409 RV Refrigerator Thermistor Sensor is suitable for Norcold refrigerators. Its main function is to measure the temperature changes inside the refrigerator to sense the temperature and control the stability of the refrigerator temperature to ensure the safety of the food in the refrigerator. Compatibility: The 629409 RV Refrigerator Thermistor Sensor is compatible with for Norcold 2118 Series Refrigerators, applicable but not limited to the following models: N611, N621, N641, N811, N821 and N841 High Quality: The 629409 RV Refrigerator Thermistor Sensor is made of high-quality thermistors and semiconductor materials. It has high sensitivity and can quickly and accurately detect the temperature inside the refrigerator, so as to make adjustments and protect the performance of the refrigerator. In addition, the outer shell of this resistor is made of waterproof material, which will not affect the use of the sensor even in cold and humid environments, and has a long service life. Easy to install: The 629409 RV refrigerator thermistor sensor is very easy to install. You only need to remove the or old sensor and replace it with a one. This process only takes a few minutes. Tips: Before replacing the accessories, please turn off the power of the refrigerator to ensure your personal safety. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color:As Shown Material:plastic Package Contents: 2 * RV Refrigerator Thermistor Sensor