How accurate is the reading, really?
Accuracy, precision, and drift are three different things, and consumer-grade sensors trade absolute accuracy for cost and form factor. Here is what the numbers on the dashboard actually mean.
Articles tagged "Accuracy"
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PM sensor accuracy and aerosols
Optical PM sensors estimate mass from scattered light. They are powerful for building telemetry, but aerosol chemistry and particle shape still matter.
COâ‚‚ sensor accuracy and ventilation
COâ‚‚ is the clearest occupancy and ventilation signal in most rooms, but placement, calibration assumptions, and recovery time still shape the interpretation.
Sensor calibration, drift, and confidence
Good monitoring is not just a sensor spec. It is calibration evidence, drift expectations, placement discipline, and confidence-aware interpretation.
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Works with
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Home Assistant
MQTT