How many Smart Room Sensors can I use?
FAQ , Thermostats , Troubleshooting Modified: March 19, 2026
You can use up to 6 Smart Room Sensors per single S40 Smart Thermostat BLE mesh network. However, you can only have a total of 6 smart accessories to one S40 Smart Thermostat. So, if you have a Smart Air Quality Monitor or a Wireless Extender, those will count towards your 6 smart accessories.
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