How does the Wireless Extender work?
FAQ , Thermostats , Troubleshooting Modified: March 19, 2026
The Lennox Wireless Extender gives you greater range and greater performance. It improves the connection between the S40 Smart Thermostat and technologically advanced accessories, such as the Smart Room Sensor and the Smart Air Quality Monitor, in larger homes or areas with reduced coverage or "dead spots". This strengthened connection nearly doubles the coverage area and thus enhances reliability, performance, and usability.
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