Lennox 11K39 Temperature Sensor 321894-708 This duct probe sensor is

This duct probe sensor is housed in a rugged

reducing labor time and verifying boiler safety control compliance

Maintenance Efficiency: Features an accessible test port and plug-in air connections for fast troubleshooting and HVAC pneumatic calibration

protecting precision instrumentation

your unit's model number must be cross-referenced to ensure the internal logic matches your specific heat pump or cooling configuration

Lennox 11K39 Temperature Sensor 321894-708 This duct probe sensor isThe Lennox 11K39 Temperature Sensor is a precision Lennox thermal thermistor engineered for direct integration with Lennox HVAC and refrigeration control boards. This HVAC discharge air sensor provides critical real time resistance data, allowing the system to modulate compressor staging and fan cycles based on precise thermal atmospheric conditions. Designed to eliminate the drift common in aftermarket components, this Lennox OEM replacement sensor