diff --git a/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/MiIoQuantiyTypes.java b/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/MiIoQuantiyTypes.java
index 9b931a91c..65a4f8020 100644
--- a/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/MiIoQuantiyTypes.java
+++ b/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/MiIoQuantiyTypes.java
@@ -36,7 +36,7 @@ import org.openhab.core.library.unit.Units;
 @NonNullByDefault
 public enum MiIoQuantiyTypes {
 
-    CELCIUS(SIUnits.CELSIUS, "C"),
+    CELSIUS(SIUnits.CELSIUS, "C", "celcius"),
     FAHRENHEIT(ImperialUnits.FAHRENHEIT),
     KELVIN(Units.KELVIN, "K"),
     PASCAL(SIUnits.PASCAL),
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.b1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.b1.json
index 3dffde6d5..a91b75b79 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.b1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.b1.json
@@ -72,7 +72,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"ChannelGroup": "Status",
 				"actions": [],
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.s1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.s1.json
index 99d2f2d2b..75202f8aa 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.s1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/cgllc.airmonitor.s1.json
@@ -74,7 +74,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.m1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.m1.json
index a4ac285fa..3e2d57876 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.m1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.m1.json
@@ -29,7 +29,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v1.json
index 2f80b97cb..4d110f8e0 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v1.json
@@ -42,7 +42,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [],
 				"category": "temperature",
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v3.json b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v3.json
index fbc7759e4..467077756 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v3.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/chuangmi.plug.v3.json
@@ -45,7 +45,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/nwt.derh.wdh318efw1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/nwt.derh.wdh318efw1.json
index 1e1cfd0c4..b743b7ed1 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/nwt.derh.wdh318efw1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/nwt.derh.wdh318efw1.json
@@ -134,7 +134,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"ChannelGroup": "Status",
 				"actions": [],
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/viomi.waterheater.e1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/viomi.waterheater.e1.json
index ba863494e..f8759bfdc 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/viomi.waterheater.e1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/viomi.waterheater.e1.json
@@ -37,7 +37,7 @@
 				"friendlyName": "Water Temperature",
 				"channel": "waterTemp",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [
 					{
@@ -56,7 +56,7 @@
 				"friendlyName": "Target Temperature",
 				"channel": "targetTemp",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [
 					{
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/xjx.toilet.json b/bundles/org.openhab.binding.miio/src/main/resources/database/xjx.toilet.json
index 75bf4b002..e4545ca37 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/xjx.toilet.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/xjx.toilet.json
@@ -12,7 +12,7 @@
 				"friendlyName": "Seat Temperature",
 				"channel": "seat_temp",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [
 					{
@@ -40,7 +40,7 @@
 				"friendlyName": "Water Temperature",
 				"channel": "water_temp_t",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [
 					{
@@ -59,7 +59,7 @@
 				"friendlyName": "Fan Temperature",
 				"channel": "fan_temp",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [
 					{
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/yeelink.bhf1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/yeelink.bhf1.json
index 331f4e7bf..d0be58033 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/yeelink.bhf1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/yeelink.bhf1.json
@@ -91,7 +91,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"actions": [],
 				"category": "temperature",
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/yunmi.waterpurifier.json b/bundles/org.openhab.binding.miio/src/main/resources/database/yunmi.waterpurifier.json
index 750a95d5c..74c4aed5e 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/yunmi.waterpurifier.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/yunmi.waterpurifier.json
@@ -30,7 +30,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.m1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.m1.json
index a3073c12c..f2f73e769 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.m1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.m1.json
@@ -296,7 +296,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v6.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v6.json
index 2ce35575a..92299edb6 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v6.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v6.json
@@ -191,7 +191,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v7.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v7.json
index c285badc7..68e75135c 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v7.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.v7.json
@@ -190,7 +190,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.vb2-miot.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.vb2-miot.json
index 1cf7f504a..0c8fa644a 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.vb2-miot.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.airpurifier.vb2-miot.json
@@ -232,7 +232,7 @@
 				"friendlyName": "Environment - Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"minimum": -40,
 					"maximum": 125,
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.fan.v3.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.fan.v3.json
index b46e81fa5..0d6723107 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.fan.v3.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.fan.v3.json
@@ -174,7 +174,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temp_dec",
 				"type": "Number",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"refresh": true,
 				"transformation": "/10",
 				"ChannelGroup": "Status",
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za1.json
index 4dc9fb14e..6468c49ef 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za1.json
@@ -28,7 +28,7 @@
 				"friendlyName": "Target Temperature",
 				"channel": "target_temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
@@ -121,7 +121,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za2-miot.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za2-miot.json
index a761d4bac..4e43fbeae 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za2-miot.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.za2-miot.json
@@ -68,7 +68,7 @@
 				"friendlyName": "Heater - Target Temperature",
 				"channel": "target-temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"minimum": 16,
 					"maximum": 28,
@@ -155,7 +155,7 @@
 				"friendlyName": "Environment - Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"minimum": -30,
 					"maximum": 100,
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.zb1-miot.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.zb1-miot.json
index f8ac1fa12..726e8f690 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.zb1-miot.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.heater.zb1-miot.json
@@ -155,7 +155,7 @@
 				"friendlyName": "Environment - Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"minimum": -30,
 					"maximum": 100,
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.ca4.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.ca4.json
index ce84de317..43223cf71 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.ca4.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.ca4.json
@@ -282,7 +282,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"minimum": -40,
 					"maximum": 125,
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.cb1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.cb1.json
index c52e3ed9a..c2bf99303 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.cb1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.cb1.json
@@ -166,7 +166,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.v1.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.v1.json
index 0aa9b347b..a21ff474e 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.v1.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zhimi.humidifier.v1.json
@@ -176,7 +176,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true
diff --git a/bundles/org.openhab.binding.miio/src/main/resources/database/zimi.powerstrip.v2.json b/bundles/org.openhab.binding.miio/src/main/resources/database/zimi.powerstrip.v2.json
index f307890e2..411e57613 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/database/zimi.powerstrip.v2.json
+++ b/bundles/org.openhab.binding.miio/src/main/resources/database/zimi.powerstrip.v2.json
@@ -77,7 +77,7 @@
 				"friendlyName": "Temperature",
 				"channel": "temperature",
 				"type": "Number:Temperature",
-				"unit": "CELCIUS",
+				"unit": "CELSIUS",
 				"stateDescription": {
 					"pattern": "%.1f %unit%",
 					"readOnly": true