diff --git a/.homeycompose/flow/actions/alarm_switch_off.json b/.homeycompose/flow/actions/alarm_switch_off.json
index 6d830064..f8f16310 100644
--- a/.homeycompose/flow/actions/alarm_switch_off.json
+++ b/.homeycompose/flow/actions/alarm_switch_off.json
@@ -7,7 +7,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "onoff.alarm_switch"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/alarm_switch_on.json b/.homeycompose/flow/actions/alarm_switch_on.json
index 35261020..fb6b040f 100644
--- a/.homeycompose/flow/actions/alarm_switch_on.json
+++ b/.homeycompose/flow/actions/alarm_switch_on.json
@@ -7,7 +7,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "onoff.alarm_switch"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/send_command_boolean.json b/.homeycompose/flow/actions/send_command_boolean.json
index 6c93d45c..b54014c5 100644
--- a/.homeycompose/flow/actions/send_command_boolean.json
+++ b/.homeycompose/flow/actions/send_command_boolean.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/actions/send_command_json.json b/.homeycompose/flow/actions/send_command_json.json
index 6d40296c..8a1f773f 100644
--- a/.homeycompose/flow/actions/send_command_json.json
+++ b/.homeycompose/flow/actions/send_command_json.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/actions/send_command_number.json b/.homeycompose/flow/actions/send_command_number.json
index 3387a426..46f96db8 100644
--- a/.homeycompose/flow/actions/send_command_number.json
+++ b/.homeycompose/flow/actions/send_command_number.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/actions/send_command_string.json b/.homeycompose/flow/actions/send_command_string.json
index 657709d9..3b705986 100644
--- a/.homeycompose/flow/actions/send_command_string.json
+++ b/.homeycompose/flow/actions/send_command_string.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/actions/set_sensor_alarm_bright.json b/.homeycompose/flow/actions/set_sensor_alarm_bright.json
index 061d40b5..4e78f8e5 100644
--- a/.homeycompose/flow/actions/set_sensor_alarm_bright.json
+++ b/.homeycompose/flow/actions/set_sensor_alarm_bright.json
@@ -10,7 +10,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "hidden.alarm_bright"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/set_sensor_alarm_ringtone.json b/.homeycompose/flow/actions/set_sensor_alarm_ringtone.json
index 7f1fb096..2fb84360 100644
--- a/.homeycompose/flow/actions/set_sensor_alarm_ringtone.json
+++ b/.homeycompose/flow/actions/set_sensor_alarm_ringtone.json
@@ -10,7 +10,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "hidden.alarm_ringtone"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/set_sensor_alarm_time.json b/.homeycompose/flow/actions/set_sensor_alarm_time.json
index e80b5b49..f95075ff 100644
--- a/.homeycompose/flow/actions/set_sensor_alarm_time.json
+++ b/.homeycompose/flow/actions/set_sensor_alarm_time.json
@@ -10,7 +10,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "hidden.alarm_time"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/set_sensor_alarm_volume.json b/.homeycompose/flow/actions/set_sensor_alarm_volume.json
index c9bd1338..88e64778 100644
--- a/.homeycompose/flow/actions/set_sensor_alarm_volume.json
+++ b/.homeycompose/flow/actions/set_sensor_alarm_volume.json
@@ -10,7 +10,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "hidden.alarm_volume"
       },
       "title": {
diff --git a/.homeycompose/flow/actions/set_sensor_muffling.json b/.homeycompose/flow/actions/set_sensor_muffling.json
index 2f9d6efb..b9f9e8af 100644
--- a/.homeycompose/flow/actions/set_sensor_muffling.json
+++ b/.homeycompose/flow/actions/set_sensor_muffling.json
@@ -10,7 +10,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "sensor_smoke|sensor_co2",
+        "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
         "capabilities": "hidden.muffling"
       },
       "title": {
diff --git a/.homeycompose/flow/triggers/receive_status_boolean.json b/.homeycompose/flow/triggers/receive_status_boolean.json
index 56f959d5..fd88690d 100644
--- a/.homeycompose/flow/triggers/receive_status_boolean.json
+++ b/.homeycompose/flow/triggers/receive_status_boolean.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/triggers/receive_status_json.json b/.homeycompose/flow/triggers/receive_status_json.json
index fe1219fd..919c44c5 100644
--- a/.homeycompose/flow/triggers/receive_status_json.json
+++ b/.homeycompose/flow/triggers/receive_status_json.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/triggers/receive_status_number.json b/.homeycompose/flow/triggers/receive_status_number.json
index 6963729d..618af34b 100644
--- a/.homeycompose/flow/triggers/receive_status_number.json
+++ b/.homeycompose/flow/triggers/receive_status_number.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/.homeycompose/flow/triggers/receive_status_string.json b/.homeycompose/flow/triggers/receive_status_string.json
index 367e9d71..1ae3134e 100644
--- a/.homeycompose/flow/triggers/receive_status_string.json
+++ b/.homeycompose/flow/triggers/receive_status_string.json
@@ -13,7 +13,7 @@
       "name": "device",
       "type": "device",
       "filter": {
-        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+        "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
       },
       "title": {
         "en": "Device"
diff --git a/app.json b/app.json
index 2cad655e..b4f8f535 100644
--- a/app.json
+++ b/app.json
@@ -438,7 +438,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -479,7 +479,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -520,7 +520,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -561,7 +561,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -1305,7 +1305,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "onoff.alarm_switch"
             },
             "title": {
@@ -1324,7 +1324,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "onoff.alarm_switch"
             },
             "title": {
@@ -1349,7 +1349,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -1387,7 +1387,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -1425,7 +1425,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -1463,7 +1463,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_smoke|siren|socket|thermostat|window_coverings"
+              "driver_id": "button|camera|circuit_breaker|dehumidifier|dimmer|doorbell|fan|garage_door|heater|humidifier|irrigator|light|other|sensor_climate|sensor_co2|sensor_contact|sensor_human|sensor_motion|sensor_pm2.5|sensor_smoke|siren|socket|thermostat|window_coverings"
             },
             "title": {
               "en": "Device"
@@ -1498,7 +1498,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "hidden.alarm_bright"
             },
             "title": {
@@ -1533,7 +1533,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "hidden.alarm_ringtone"
             },
             "title": {
@@ -1584,7 +1584,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "hidden.alarm_time"
             },
             "title": {
@@ -1618,7 +1618,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "hidden.alarm_volume"
             },
             "title": {
@@ -1673,7 +1673,7 @@
             "name": "device",
             "type": "device",
             "filter": {
-              "driver_id": "sensor_smoke|sensor_co2",
+              "driver_id": "sensor_co2|sensor_pm2.5|sensor_smoke",
               "capabilities": "hidden.muffling"
             },
             "title": {
@@ -6656,6 +6656,272 @@
         }
       ]
     },
+    {
+      "capabilities": [
+        "alarm_pm25",
+        "measure_pm25"
+      ],
+      "connectivity": [
+        "cloud"
+      ],
+      "platforms": [
+        "local",
+        "cloud"
+      ],
+      "images": {
+        "small": "/drivers/sensor_pm2.5/assets/images/small.png",
+        "large": "/drivers/sensor_pm2.5/assets/images/large.png",
+        "xlarge": "/drivers/sensor_pm2.5/assets/images/xlarge.png"
+      },
+      "pair": [
+        {
+          "id": "welcome",
+          "navigation": {
+            "next": "login_oauth2"
+          }
+        },
+        {
+          "id": "login_oauth2",
+          "template": "login_oauth2"
+        },
+        {
+          "id": "list_devices",
+          "template": "list_devices",
+          "navigation": {
+            "next": "add_devices"
+          }
+        },
+        {
+          "id": "add_devices",
+          "template": "add_devices"
+        }
+      ],
+      "repair": [
+        {
+          "id": "login_oauth2",
+          "template": "login_oauth2"
+        }
+      ],
+      "class": "sensor",
+      "name": {
+        "en": "PM2.5 Detector",
+        "nl": "PM2.5 Meter"
+      },
+      "id": "sensor_pm2.5",
+      "settings": [
+        {
+          "id": "measure_temperature_scaling",
+          "label": {
+            "en": "Measured Temperature Scale"
+          },
+          "hint": {
+            "en": "By how much the temperature measured by the device is scaled."
+          },
+          "value": "1",
+          "type": "dropdown",
+          "values": [
+            {
+              "id": "0",
+              "label": {
+                "en": "1"
+              }
+            },
+            {
+              "id": "1",
+              "label": {
+                "en": "1/10"
+              }
+            },
+            {
+              "id": "2",
+              "label": {
+                "en": "1/100"
+              }
+            },
+            {
+              "id": "3",
+              "label": {
+                "en": "1/1000"
+              }
+            }
+          ]
+        },
+        {
+          "id": "measure_humidity_scaling",
+          "label": {
+            "en": "Measured Humidity Scale"
+          },
+          "hint": {
+            "en": "By how much the humidity measured by the device is scaled."
+          },
+          "value": "1",
+          "type": "dropdown",
+          "values": [
+            {
+              "id": "0",
+              "label": {
+                "en": "1"
+              }
+            },
+            {
+              "id": "1",
+              "label": {
+                "en": "1/10"
+              }
+            },
+            {
+              "id": "2",
+              "label": {
+                "en": "1/100"
+              }
+            },
+            {
+              "id": "3",
+              "label": {
+                "en": "1/1000"
+              }
+            }
+          ]
+        },
+        {
+          "id": "use_alarm_timeout",
+          "type": "checkbox",
+          "hint": {
+            "en": "Turn the alarm off a set time after the start signal, even if no end signal is received."
+          },
+          "label": {
+            "en": "Use Alarm Timeout"
+          },
+          "value": false
+        },
+        {
+          "id": "alarm_timeout",
+          "type": "number",
+          "label": {
+            "en": "Alarm Timeout"
+          },
+          "value": 10,
+          "min": 1,
+          "units": {
+            "en": "seconds"
+          }
+        },
+        {
+          "id": "sensor_alarm_group",
+          "type": "group",
+          "label": {
+            "en": "NOTE: Some settings are not supported by every device."
+          },
+          "children": [
+            {
+              "id": "muffling",
+              "type": "checkbox",
+              "label": {
+                "en": "Mute Alarm"
+              }
+            },
+            {
+              "id": "alarm_volume",
+              "type": "dropdown",
+              "label": {
+                "en": "Alarm Volume"
+              },
+              "values": [
+                {
+                  "id": "low",
+                  "label": {
+                    "en": "Low"
+                  }
+                },
+                {
+                  "id": "middle",
+                  "label": {
+                    "en": "Middle"
+                  }
+                },
+                {
+                  "id": "high",
+                  "label": {
+                    "en": "High"
+                  }
+                },
+                {
+                  "id": "mute",
+                  "label": {
+                    "en": "Mute"
+                  }
+                }
+              ]
+            },
+            {
+              "id": "alarm_time",
+              "type": "number",
+              "label": {
+                "en": "Alarm Duration"
+              },
+              "min": 1,
+              "step": 1,
+              "value": 1,
+              "units": {
+                "en": "seconds"
+              }
+            },
+            {
+              "id": "alarm_ringtone",
+              "type": "dropdown",
+              "label": {
+                "en": "Alarm Tone"
+              },
+              "values": [
+                {
+                  "id": "1",
+                  "label": "1"
+                },
+                {
+                  "id": "2",
+                  "label": "2"
+                },
+                {
+                  "id": "3",
+                  "label": "3"
+                },
+                {
+                  "id": "4",
+                  "label": "4"
+                },
+                {
+                  "id": "5",
+                  "label": "5"
+                }
+              ]
+            },
+            {
+              "id": "alarm_bright",
+              "type": "number",
+              "label": {
+                "en": "Alarm Brightness"
+              },
+              "min": 0,
+              "step": 1,
+              "max": 100,
+              "value": 100,
+              "units": "%"
+            }
+          ]
+        },
+        {
+          "id": "deviceSpecification",
+          "type": "label",
+          "label": {
+            "en": "Device Specification"
+          },
+          "hint": {
+            "en": "The Tuya specification of this device"
+          },
+          "value": "<not available>"
+        }
+      ]
+    },
     {
       "capabilities": [
         "alarm_smoke"
diff --git a/drivers/sensor_pm2.5/SensorPm25Constants.ts b/drivers/sensor_pm2.5/SensorPm25Constants.ts
new file mode 100644
index 00000000..ac90497a
--- /dev/null
+++ b/drivers/sensor_pm2.5/SensorPm25Constants.ts
@@ -0,0 +1,26 @@
+import { HomeySensorSettings, TuyaSensorSettings } from '../../lib/sensor/TuyaSensorConstants';
+import { ScaledProperty } from '../../types/TuyaTypes';
+
+export const SENSOR_PM25_CAPABILITY_MAPPING = {
+  pm25_state: 'alarm_pm25',
+  pm25_value: 'measure_pm25', // μg/m³
+  ch2o_value: 'measure_ch2o', // ppm
+  voc_value: 'measure_tvoc', // ppm
+  co2_value: 'measure_co2', // ppm
+  pm1: 'measure_pm1', // μg/m³
+  pm10: 'measure_pm10', // μg/m³
+  temp_current: 'measure_temperature',
+  humidity_value: 'measure_humidity',
+} as const;
+
+export const SENSOR_PM25_CAPABILITIES = {
+  read_only: ['pm25_value', 'ch2o_value', 'voc_value', 'co2_value', 'pm1', 'pm10'],
+  read_only_scaled: ['temp_current', 'humidity_value'],
+} as const;
+
+export type HomeyPM25SensorSettings = {
+  measure_temperature_scaling: ScaledProperty;
+  measure_humidity_scaling: ScaledProperty;
+} & HomeySensorSettings;
+
+export type TuyaPM25SensorSettings = TuyaSensorSettings;
diff --git a/drivers/sensor_pm2.5/assets/icon.svg b/drivers/sensor_pm2.5/assets/icon.svg
new file mode 100644
index 00000000..74872e0b
--- /dev/null
+++ b/drivers/sensor_pm2.5/assets/icon.svg
@@ -0,0 +1 @@
+<svg height="960" viewBox="0 0 960 960" width="960" xmlns="http://www.w3.org/2000/svg"><path d="m299.189494 35.0223312c3.708581-.1454756 7.431107-.1708315 11.16353-.0752276l475 12.1668505c92.162505 2.3606893 165.646976 77.7515259 165.646976 169.9442589v516.595226c0 91.013332-71.680131 165.881373-162.607367 169.839186l-475 20.675444c-2.462754.107197-4.927548.160814-7.392633.160814h-1.584397c-3.16579-.036288-6.313387-.152424-9.439658-.355805l-.268945-.019698-.090928.000011c-.775278-.010255-1.554759-.065717-2.334923-.167906l-.090149-.013105-1.002179-.080961c-4.472124-.386601-8.910013-.947982-13.304488-1.682159l-1.018333-.17588.521154.06194c-19.175151-2.262458-54.299805-6.101572-105.313841-11.510137-.754427-.079986-1.503692-.202832-2.244162-.367945l-28.827675-6.428093c-77.7237622-17.331109-133.001476-86.292413-133.001476-165.925011v-527.373804c0-89.661987 69.6347414-163.910458 159.112853-169.652463 33.403936-2.1441823 54.254343-3.5060054 62.486655-4.0810606 6.334657-.4424975 19.126597-.794759 36.952363-1.0919142l3.174529-.0514243 3.187323-.0488424c7.476536-.11152 15.208881-.2059285 22.770351-.2834011l2.862926-.0278449.477844-.0239101zm15.640053 41.0711702c-76.260557-.4797106-139.077296 60.3205416-140.799633 136.8478286-.023628 1.049857-.035444 2.099946-.035444 3.150069v525.686244c0 77.319865 62.680135 140 140 140 2.033716 0 4.067191-.044314 6.098976-.132911l457.439812-19.946897c71.147161-3.102408 127.981703-58.922052 133.467037-128.77215l-.000295-515.867472-.015858-1.975145c-5.358504-67.011128-57.944142-120.8976092-124.769602-127.9213572l-1.885757-.0608722-147.860783-3.7874593-319.323461-7.186537zm-78.625372.1519709-.182199.0122969c-1.439917.066141-2.656878.1334691-3.635123.2018029-8.338417.582467-29.221022 1.9463931-62.712038 4.0961649-68.424742 4.3909646-121.674815 61.169182-121.674815 129.734382v527.374015l.0126563 1.824386c.834484 60.121884 42.8528948 111.938777 101.6943547 125.059446l27.709989 6.178413.403681.043999c18.464414 1.958457 34.829048 3.709531 49.09678 5.253567-43.895938-28.525664-72.922991-77.996167-72.922991-134.246302v-525.686244c0-1.20014.013503-2.400242.040507-3.600079 1.324001-58.82829 34.237977-109.52463 82.169198-136.2458477zm337.001361 205.3919777c110.601399 0 199.835472 98.614474 199.835472 219.791222 0 121.176749-89.234073 219.791223-199.835472 219.791223-110.6014 0-199.835473-98.614474-199.835473-219.791223 0-121.176748 89.234073-219.791222 199.835473-219.791222zm0 20c-99.085074 0-179.835473 89.238985-179.835473 199.791222 0 48.821736 15.748386 93.486844 41.869506 128.145117l130.780959-135.100378c7.864231-8.124003 21.054082.997548 16.228585 11.223014l-83.76232 177.497714c22.773135 11.577368 48.083509 18.025756 74.718743 18.025756 99.085073 0 179.835472-89.238986 179.835472-199.791223s-80.750399-199.791222-179.835472-199.791222zm-34.81361 250.132222-90.239344 93.219224c9.960759 10.70735 21.030078 20.145835 32.994926 28.083619z"/></svg>
diff --git a/drivers/sensor_pm2.5/assets/images/large.png b/drivers/sensor_pm2.5/assets/images/large.png
new file mode 100644
index 00000000..d5fd4a97
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diff --git a/drivers/sensor_pm2.5/assets/images/small.png b/drivers/sensor_pm2.5/assets/images/small.png
new file mode 100644
index 00000000..982e9d95
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diff --git a/drivers/sensor_pm2.5/assets/images/xlarge.png b/drivers/sensor_pm2.5/assets/images/xlarge.png
new file mode 100644
index 00000000..abe8e68c
Binary files /dev/null and b/drivers/sensor_pm2.5/assets/images/xlarge.png differ
diff --git a/drivers/sensor_pm2.5/device.ts b/drivers/sensor_pm2.5/device.ts
new file mode 100644
index 00000000..3e97805a
--- /dev/null
+++ b/drivers/sensor_pm2.5/device.ts
@@ -0,0 +1,56 @@
+import TuyaOAuth2DeviceSensor from '../../lib/sensor/TuyaOAuth2DeviceSensor';
+import { SettingsEvent, TuyaStatus } from '../../types/TuyaTypes';
+import { HomeySensorSettings, SENSOR_SETTING_LABELS } from '../../lib/sensor/TuyaSensorConstants';
+import * as Util from '../../lib/TuyaOAuth2Util';
+import {
+  HomeyPM25SensorSettings,
+  SENSOR_PM25_CAPABILITIES,
+  SENSOR_PM25_CAPABILITY_MAPPING,
+} from './SensorPm25Constants';
+import { constIncludes, getFromMap } from '../../lib/TuyaOAuth2Util';
+
+module.exports = class TuyaOAuth2DeviceSensorPM25 extends TuyaOAuth2DeviceSensor {
+  async onOAuth2Init(): Promise<void> {
+    await this.initAlarm('alarm_pm25').catch(this.error);
+    return super.onOAuth2Init();
+  }
+
+  async onTuyaStatus(status: TuyaStatus, changedStatusCodes: string[]): Promise<void> {
+    await super.onTuyaStatus(status, changedStatusCodes);
+
+    for (const tuyaCapability in status) {
+      const value = status[tuyaCapability];
+      const homeyCapability = getFromMap(SENSOR_PM25_CAPABILITY_MAPPING, tuyaCapability);
+
+      if (
+        tuyaCapability === 'pm25_state' &&
+        (!this.getSetting('use_alarm_timeout') || changedStatusCodes.includes(tuyaCapability))
+      ) {
+        await this.setAlarmCapabilityValue(SENSOR_PM25_CAPABILITY_MAPPING[tuyaCapability], value === 'alarm').catch(
+          this.error,
+        );
+      }
+
+      if (constIncludes(SENSOR_PM25_CAPABILITIES.read_only, tuyaCapability) && homeyCapability) {
+        await this.safeSetCapabilityValue(homeyCapability, value);
+      }
+
+      if (constIncludes(SENSOR_PM25_CAPABILITIES.read_only_scaled, tuyaCapability) && homeyCapability) {
+        const scaling = 10.0 ** Number.parseInt(this.getSetting(`${homeyCapability}_scaling`) ?? '0', 10);
+        await this.safeSetCapabilityValue(homeyCapability, (status[tuyaCapability] as number) / scaling);
+      }
+    }
+  }
+
+  async onSettings(event: SettingsEvent<HomeyPM25SensorSettings>): Promise<string | void> {
+    for (const tuyaCapability of SENSOR_PM25_CAPABILITIES.read_only_scaled) {
+      const homeyCapability = SENSOR_PM25_CAPABILITY_MAPPING[tuyaCapability];
+      await Util.handleScaleSetting(this, event, `${homeyCapability}_scaling`, homeyCapability);
+    }
+
+    const [unsupportedSettings, unsupportedValues] = await super.onAlarmSettings(
+      event as unknown as SettingsEvent<HomeySensorSettings>,
+    );
+    return Util.reportUnsupportedSettings(this, unsupportedSettings, unsupportedValues, SENSOR_SETTING_LABELS);
+  }
+};
diff --git a/drivers/sensor_pm2.5/driver.compose.json b/drivers/sensor_pm2.5/driver.compose.json
new file mode 100644
index 00000000..269caaf4
--- /dev/null
+++ b/drivers/sensor_pm2.5/driver.compose.json
@@ -0,0 +1,9 @@
+{
+  "$extends": "tuya",
+  "class": "sensor",
+  "name": {
+    "en": "PM2.5 Detector",
+    "nl": "PM2.5 Meter"
+  },
+  "capabilities": ["alarm_pm25", "measure_pm25"]
+}
diff --git a/drivers/sensor_pm2.5/driver.settings.compose.json b/drivers/sensor_pm2.5/driver.settings.compose.json
new file mode 100644
index 00000000..9c6a2e27
--- /dev/null
+++ b/drivers/sensor_pm2.5/driver.settings.compose.json
@@ -0,0 +1,36 @@
+[
+  {
+    "$extends": "scaledProperty",
+    "id": "measure_temperature_scaling",
+    "label": {
+      "en": "Measured Temperature Scale"
+    },
+    "hint": {
+      "en": "By how much the temperature measured by the device is scaled."
+    },
+    "value": "1"
+  },
+  {
+    "$extends": "scaledProperty",
+    "id": "measure_humidity_scaling",
+    "label": {
+      "en": "Measured Humidity Scale"
+    },
+    "hint": {
+      "en": "By how much the humidity measured by the device is scaled."
+    },
+    "value": "1"
+  },
+  {
+    "$extends": "useAlarmTimeout"
+  },
+  {
+    "$extends": "alarmTimeout"
+  },
+  {
+    "$extends": "sensor_alarm_group"
+  },
+  {
+    "$extends": "deviceSpecification"
+  }
+]
diff --git a/drivers/sensor_pm2.5/driver.ts b/drivers/sensor_pm2.5/driver.ts
new file mode 100644
index 00000000..7a2d16e2
--- /dev/null
+++ b/drivers/sensor_pm2.5/driver.ts
@@ -0,0 +1,59 @@
+import { DEVICE_CATEGORIES } from '../../lib/TuyaOAuth2Constants';
+import { ListDeviceProperties } from '../../lib/TuyaOAuth2Driver';
+import TuyaOAuth2DriverSensor from '../../lib/sensor/TuyaOAuth2DriverSensor';
+import {
+  type TuyaDeviceDataPointResponse,
+  TuyaDeviceResponse,
+  TuyaDeviceSpecificationResponse,
+} from '../../types/TuyaApiTypes';
+import { constIncludes, getFromMap } from '../../lib/TuyaOAuth2Util';
+import { SENSOR_PM25_CAPABILITY_MAPPING } from './SensorPm25Constants';
+import { CLIMATE_SENSOR_CAPABILITIES } from '../sensor_climate/TuyaClimateSensorConstants';
+
+module.exports = class TuyaOAuth2DriverSensorPM25 extends TuyaOAuth2DriverSensor {
+  TUYA_DEVICE_CATEGORIES = [DEVICE_CATEGORIES.SECURITY_VIDEO_SURV.PM25_DETECTOR, 'pm2.5'] as const;
+
+  onTuyaPairListDeviceProperties(
+    device: TuyaDeviceResponse,
+    specifications?: TuyaDeviceSpecificationResponse,
+    dataPoints?: TuyaDeviceDataPointResponse,
+  ): ListDeviceProperties {
+    const props = super.onTuyaPairListDeviceProperties(device, specifications, dataPoints);
+
+    for (const status of device.status) {
+      const tuyaCapability = status.code;
+      const homeyCapability = getFromMap(SENSOR_PM25_CAPABILITY_MAPPING, tuyaCapability);
+
+      if (homeyCapability) {
+        props.store.tuya_capabilities.push(tuyaCapability);
+        props.capabilities.push(homeyCapability);
+      }
+    }
+
+    if (!specifications || !specifications.status) {
+      return props;
+    }
+
+    for (const specification of specifications.status) {
+      const tuyaCapability = specification.code;
+      const values = JSON.parse(specification.values);
+      const homeyCapability = getFromMap(SENSOR_PM25_CAPABILITY_MAPPING, tuyaCapability);
+
+      if (tuyaCapability === 'pm25_state') {
+        if (!values.range.includes('normal')) {
+          props.settings['use_alarm_timeout'] = true;
+        }
+      }
+
+      if (constIncludes(CLIMATE_SENSOR_CAPABILITIES.read_only_scaled, tuyaCapability)) {
+        if ([0, 1, 2, 3].includes(values.scale)) {
+          props.settings[`${homeyCapability}_scaling`] = `${values.scale}`;
+        } else {
+          this.error(`Unsupported ${tuyaCapability} scale:`, values.scale);
+        }
+      }
+    }
+
+    return props;
+  }
+};
diff --git a/drivers/sensor_pm2.5/pair/welcome.assets/chevron-right.png b/drivers/sensor_pm2.5/pair/welcome.assets/chevron-right.png
new file mode 100644
index 00000000..d7331b23
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diff --git a/drivers/sensor_pm2.5/pair/welcome.assets/logos.png b/drivers/sensor_pm2.5/pair/welcome.assets/logos.png
new file mode 100644
index 00000000..faefa496
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diff --git a/drivers/sensor_pm2.5/pair/welcome.html b/drivers/sensor_pm2.5/pair/welcome.html
new file mode 100644
index 00000000..14a7e06e
--- /dev/null
+++ b/drivers/sensor_pm2.5/pair/welcome.html
@@ -0,0 +1,60 @@
+<style type="text/css">
+  .tuya-welcome-title {
+    text-align: center;
+  }
+
+  .tuya-welcome-text {
+    text-align: center;
+    font-size: 17px;
+    line-height: 24px;
+    color: #1c1c1c;
+  }
+
+  .tuya-welcome-link {
+    color: #0082fa;
+    text-decoration: none;
+    font-size: 0;
+  }
+
+  .tuya-welcome-link > span {
+    vertical-align: middle;
+    font-size: 17px;
+  }
+
+  .tuya-welcome-link:hover > span {
+    text-decoration: underline;
+  }
+
+  .tuya-welcome-link > img {
+    height: 17px;
+    vertical-align: middle;
+    margin-top: 2px;
+  }
+
+  .tuya-welcome-logos {
+    height: 184px;
+    margin-top: 50px;
+  }
+</style>
+
+<h1 class="homey-title tuya-welcome-title" data-i18n="pair.welcome.title"></h1>
+
+<p class="tuya-welcome-text">
+  <span data-i18n="pair.welcome.text"></span>
+</p>
+
+<p class="tuya-welcome-text">
+  <a
+    href="https://support.homey.app/hc/en-us/articles/14504423087644-Connecting-Tuya-with-Homey"
+    target="_blank"
+    onclick="Homey.popup(this.href); return false;"
+    class="tuya-welcome-link"
+  >
+    <span data-i18n="pair.welcome.link"></span>
+    <img src="./welcome.assets/chevron-right.png" />
+  </a>
+</p>
+
+<p class="tuya-welcome-text">
+  <img class="tuya-welcome-logos" src="./welcome.assets/logos.png" />
+</p>