In either a wall or wallswitch mounted sensor module, {HEAD ~ the locations} of the temperature sensor and various heat generating components operating at higher temperatures, as well as air flow considerations, are critical in minimizing a temperature measurement offset between the temperature outside {TAIL ~ the sensor enclosure} and the sensor reading 
In either a wall or wallswitch mounted sensor module , { HEAD ~ the locations } of the temperature sensor and various heat generating components operating at higher temperatures , as well as air flow considerations , are critical in minimizing a temperature measurement offset between the temperature outside { TAIL ~ the sensor enclosure } and the sensor reading
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