diff --git a/conf/glances.conf b/conf/glances.conf
index a7ed6374..25a5d5a1 100644
--- a/conf/glances.conf
+++ b/conf/glances.conf
@@ -354,6 +354,8 @@ temperature_hdd_critical=60
 battery_careful=80
 battery_warning=90
 battery_critical=95
+# Fan speed threashold in RPM
+#fan_speed_careful=100
 # Sensors alias
 #alias=core 0:CPU Core 0,core 1:CPU Core 1
 
diff --git a/docker-compose/glances.conf b/docker-compose/glances.conf
index 225700fa..0686b528 100755
--- a/docker-compose/glances.conf
+++ b/docker-compose/glances.conf
@@ -354,6 +354,8 @@ temperature_hdd_critical=60
 battery_careful=80
 battery_warning=90
 battery_critical=95
+# Fan speed threashold in RPM
+#fan_speed_careful=100
 # Sensors alias
 #alias=core 0:CPU Core 0,core 1:CPU Core 1
 
diff --git a/glances/plugins/plugin/model.py b/glances/plugins/plugin/model.py
index 247d4cd8..99539e1b 100644
--- a/glances/plugins/plugin/model.py
+++ b/glances/plugins/plugin/model.py
@@ -694,19 +694,32 @@ class GlancesPluginModel(object):
         stat_name = self.get_stat_name(header=header)
 
         # Manage limits
-        # If is_max is set then display the value in MAX
+        # If is_max is set then default style is set to MAX else default is set to OK
         ret = 'MAX' if is_max else 'OK'
+
+        # Iter through limits
         try:
-            if value >= self.get_limit('critical', stat_name=stat_name):
-                ret = 'CRITICAL'
-            elif value >= self.get_limit('warning', stat_name=stat_name):
-                ret = 'WARNING'
-            elif value >= self.get_limit('careful', stat_name=stat_name):
-                ret = 'CAREFUL'
-            elif current < minimum:
-                ret = 'CAREFUL'
+            limit = self.get_limit('critical', stat_name=stat_name)
         except KeyError:
-            return 'DEFAULT'
+            try:
+                limit = self.get_limit('warning', stat_name=stat_name)
+            except KeyError:
+                try:
+                    limit = self.get_limit('careful', stat_name=stat_name)
+                except KeyError:
+                    return 'DEFAULT'
+                else:
+                    if value >= limit:
+                        ret = 'CAREFUL'
+            else:
+                if value >= limit:
+                    ret = 'WARNING'
+        else:
+            if value >= limit:
+                ret = 'CRITICAL'
+
+        if current < minimum:
+            ret = 'CAREFUL'
 
         # Manage log
         log_str = ""
@@ -792,17 +805,13 @@ class GlancesPluginModel(object):
 
         # Get the limit for stat + header
         # Example: network_wlan0_rx_careful
-        try:
-            limit = self._limits[stat_name + '_' + criticality]
-        except KeyError:
-            # Try fallback to plugin default limit
-            # Example: network_careful
-            limit = self._limits[self.plugin_name + '_' + criticality]
+        if stat_name + '_' + criticality in self._limits:
+            return self._limits[stat_name + '_' + criticality]
+        elif self.plugin_name + '_' + criticality in self._limits:
+            return self._limits[self.plugin_name + '_' + criticality]
 
-        # logger.debug("{} {} value is {}".format(stat_name, criticality, limit))
-
-        # Return the limiter
-        return limit
+        # No key found, the raise an error
+        raise KeyError
 
     def get_limit_action(self, criticality, stat_name=""):
         """Return the tuple (action, repeat) for the alert.
@@ -830,19 +839,12 @@ class GlancesPluginModel(object):
         """Return the log tag for the alert."""
         # Get the log tag for stat + header
         # Example: network_wlan0_rx_log
-        try:
-            log_tag = self._limits[stat_name + '_log']
-        except KeyError:
-            # Try fallback to plugin default log
-            # Example: network_log
-            try:
-                log_tag = self._limits[self.plugin_name + '_log']
-            except KeyError:
-                # By default, log are disabled
-                return default_action
-
-        # Return the action list
-        return log_tag[0].lower() == 'true'
+        if stat_name + '_log' in self._limits:
+            return self._limits[stat_name + '_log'][0].lower() == 'true'
+        elif self.plugin_name + '_log' in self._limits:
+            return self._limits[self.plugin_name + '_log'][0].lower() == 'true'
+        else:
+            return default_action
 
     def get_conf_value(self, value, header="", plugin_name=None, default=[]):
         """Return the configuration (header_) value for the current plugin.
diff --git a/glances/plugins/sensors/__init__.py b/glances/plugins/sensors/__init__.py
index 1c90b601..0ed9341a 100644
--- a/glances/plugins/sensors/__init__.py
+++ b/glances/plugins/sensors/__init__.py
@@ -236,9 +236,9 @@ class PluginModel(GlancesPluginModel):
                 continue
             # Alert processing
             if i['type'] == SENSOR_TEMP_TYPE:
-                if self.is_limit('critical', stat_name='sensors_temperature_' + i['label']):
+                if self.is_limit('critical', stat_name=SENSOR_TEMP_TYPE + '_' + i['label']):
                     # By default use the thresholds configured in the glances.conf file (see #2058)
-                    alert = self.get_alert(current=i['value'], header='temperature_' + i['label'])
+                    alert = self.get_alert(current=i['value'], header=SENSOR_TEMP_TYPE + '_' + i['label'])
                 else:
                     # Else use the system thresholds
                     if i['critical'] is None:
@@ -251,7 +251,8 @@ class PluginModel(GlancesPluginModel):
                         alert = 'WARNING'
                     else:
                         alert = 'OK'
-            elif i['type'] == 'battery':
+            elif i['type'] == SENSORS_BATTERY_TYPE:
+                # Battery is in %
                 alert = self.get_alert(current=100 - i['value'], header=i['type'])
             else:
                 alert = self.get_alert(current=i['value'], header=i['type'])