CSA Matter Certified
Certificate: CSA25B3DMAT47759-24LennoxThermostats
Lennox S40 Smart Thermostat
CSA CertifiedDirect retailer linkWorks with major ecosystems
$699.030
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Lennox S40 Smart Thermostat with Matter support from Lennox. CSA-certified smart thermostat for major smart home ecosystems.
Wi-Fi
Buy on Amazon$699.03
Last checked: Mar 16, 2026
Last checked: May 19, 2026Price confidence: recently verified
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Specifications
Ecosystem Compatibility
🔗Matter
🍎Apple Home
📢Alexa
🏠Google Home
📖
Best Matter Smart Thermostats 2026
Smart thermostats with Matter — save energy with universal compatibility.
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Lennox S40 Smart Thermostat
CSA certified• $699.03