At BitFog, we recently integrated YoLink and Ecowitt sensors into a live commercial office building alongside the existing building automation system (BAS).

Our goal was simple: gain better visibility into actual tenant comfort conditions instead of relying solely on traditional thermostat and BAS data.

Most commercial HVAC systems only expose a limited number of sensing points through the BAS. In many buildings, thermostats may not accurately represent occupant comfort due to sensor placement, airflow patterns, solar loading, equipment heat, or calibration drift.

By adding independent wireless sensors throughout tenant spaces, we were able to:

  • Validate BAS temperature readings against independent sensors
  • Verify tenant comfort complaints with historical data
  • Monitor spaces that previously had limited visibility
  • Detect localized hot and cold spots
  • Compare conditions across suites and floors
  • Improve confidence in HVAC troubleshooting decisions

The long-range LoRa-based architecture of YoLink sensors made deployment especially simple in large commercial spaces where Wi-Fi connectivity can be unreliable or difficult to manage.

We also integrated Ecowitt environmental sensors, including black globe temperature monitoring, to better understand radiant heat effects inside perimeter offices and sun-exposed tenant spaces. Traditional thermostats often fail to capture how occupants actually experience a room, especially in areas with heavy afternoon solar gain.

By combining BAS data with independent environmental sensing, we created a much more complete operational picture of real occupant comfort conditions.

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This type of layered sensing approach becomes increasingly valuable as commercial buildings adopt more data-driven HVAC optimization, tenant experience monitoring, and AI-assisted operational workflows.