Johnson Controls TE 636AM 1 Thermistor 320735 701 Whether you are performing a Whether you are performing a routine service or a complex system repair Whether you are troubleshooting a 24V zone valve actuator failure or performing preventive maintenance on a multi zone hydronic setup contractors can ensure seamless compatibility with Johnson Controls Metasys and other 10K NTC controllers while providing ruggedized protection against bypass air and condensation through its robust probe design and optional thermal grease application This well mount temperature sensor features a durable 6 inch stainless steel probe and is housed in a metal enclosure that meets strict plenum ratings