The Ambient Thermistor-Blue from Rheem is a vital component for monitoring temperature in water heating systems. This high-precision thermistor ensures accurate readings, enhancing the efficiency and performance of your unit. Designed for compatibility with various Rheem models, it is constructed from durable materials to withstand operational demands. The thermistor's compact design allows for easy installation, making it an essential accessory for both residential and commercial applications. Upgrade your water heating system with this reliable ambient thermistor for improved temperature control and efficiency.