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Add comment on conversion factor for Carbon monoxide on dependency molecular weight (#152535)

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Jan Bouwhuis
2025-09-18 15:36:12 +02:00
committed by GitHub
parent 017a84a859
commit 472d70b6c9
1 changed files with 3 additions and 1 deletions
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4
homeassistant/util/unit_conversion.py
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@@ -174,7 +174,9 @@ class CarbonMonoxideConcentrationConverter(BaseUnitConverter):
UNIT_CLASS = "carbon_monoxide"
_UNIT_CONVERSION: dict[str | None, float] = {
CONCENTRATION_PARTS_PER_MILLION: 1,
CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER: 1.145609,
# concentration (mg/m3) = 0.0409 x concentration (ppm) x molecular weight
# Carbon monoxide molecular weight: 28.01 g/mol
CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER: 0.0409 * 28.01,
}
VALID_UNITS = {
CONCENTRATION_PARTS_PER_MILLION,