diff --git a/homeassistant/components/sensor/recorder.py b/homeassistant/components/sensor/recorder.py
index c321caa616d..6c1ff110392 100644
--- a/homeassistant/components/sensor/recorder.py
+++ b/homeassistant/components/sensor/recorder.py
@@ -28,9 +28,13 @@ from homeassistant.components.recorder.models import (
 )
 from homeassistant.const import (
     ATTR_UNIT_OF_MEASUREMENT,
+    CONCENTRATION_MICROGRAMS_PER_CUBIC_FOOT,
     REVOLUTIONS_PER_MINUTE,
+    UnitOfElectricPotential,
     UnitOfIrradiance,
+    UnitOfMass,
     UnitOfSoundPressure,
+    UnitOfTime,
     UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant, State, callback, split_entity_id
@@ -47,8 +51,10 @@ from homeassistant.util.hass_dict import HassKey
 from .const import (
     ATTR_LAST_RESET,
     ATTR_STATE_CLASS,
+    CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     DOMAIN,
     SensorStateClass,
+    UnitOfConductivity,
     UnitOfVolumeFlowRate,
 )
 
@@ -79,6 +85,14 @@ EQUIVALENT_UNITS = {
     "ft3": UnitOfVolume.CUBIC_FEET,
     "m3": UnitOfVolume.CUBIC_METERS,
     "ft³/m": UnitOfVolumeFlowRate.CUBIC_FEET_PER_MINUTE,
+    "\u00b5Sv/h": "μSv/h",  # aranet: radiation rate
+    "\u00b5S/cm": UnitOfConductivity.MICROSIEMENS_PER_CM,
+    "\u00b5V": UnitOfElectricPotential.MICROVOLT,
+    "\u00b5g/ft³": CONCENTRATION_MICROGRAMS_PER_CUBIC_FOOT,
+    "\u00b5g/m³": CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
+    "\u00b5mol/s⋅m²": "μmol/s⋅m²",  # fyta: light
+    "\u0065g": UnitOfMass.MICROGRAMS,
+    "\u00b5s": UnitOfTime.MICROSECONDS,
 }
 
 
diff --git a/homeassistant/const.py b/homeassistant/const.py
index 4d9402405ce..6ad6bc04225 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -839,7 +839,7 @@ class UnitOfConductivity(
     # Deprecated aliases
     SIEMENS = "S/cm"
     """Deprecated: Please use UnitOfConductivity.SIEMENS_PER_CM"""
-    MICROSIEMENS = "μS/cm"  # 'b'\xce\xbcS/cm'
+    MICROSIEMENS = "μS/cm"  # "μ" == "\u03bc"
     """Deprecated: Please use UnitOfConductivity.MICROSIEMENS_PER_CM"""
     MILLISIEMENS = "mS/cm"
     """Deprecated: Please use UnitOfConductivity.MILLISIEMENS_PER_CM"""