the SWT1935 furnace limit switch is the standard solution for restoring safe furnace operation when airflow restrictions or dirty filters have stressed the original safety controls

This kit is a complete field solution

OEM Reliability: Genuine Lennox furnace part ensures a perfect fit and eliminates the common bypass issues found with generic valves

Built to handle the rigorous duty cycles of Heil

The Platinum RTD sensor is hermetically sealed within a 304 stainless steel probe

Siemens Building Technology AQF3100 Solar Deflector 320819-301 the SWT1935 furnace limit switchFor field technicians deploying precise environmental monitoring, the Siemens Building Technology AQF3100 Solar Deflector is a critical engineering component for outdoor sensor protection. This outdoor mounting kit is specifically designed to work in tandem with the Siemens QFA31xx series humidity and temperature sensors to ensure data integrity. By utilizing a high performance radiation shield, the AQF3100 mitigates the impact of direct solar gain