diff --git a/hal-core/src/se/hal/struct/devicedata/ParticulateMatterSensorData.java b/hal-core/src/se/hal/struct/devicedata/ParticulateMatterSensorData.java
new file mode 100644
index 00000000..c0660e0e
--- /dev/null
+++ b/hal-core/src/se/hal/struct/devicedata/ParticulateMatterSensorData.java
@@ -0,0 +1,42 @@
+package se.hal.struct.devicedata;
+
+import se.hal.intf.HalSensorData;
+
+
+public class ParticulateMatterSensorData extends HalSensorData {
+
+    private double particulateMatter;
+
+
+    public ParticulateMatterSensorData(){}
+    public ParticulateMatterSensorData(double particulateMatter, long timestamp){
+        this.particulateMatter = particulateMatter;
+        super.setTimestamp(timestamp);
+    }
+
+
+    @Override
+    public String toString(){
+        return particulateMatter + " µg/m3";
+    }
+
+    // ----------------------------------------
+    // Storage methods
+    // ----------------------------------------
+
+    /**
+     * @return the particulate matter
+     */
+    @Override
+    public double getData() {
+        return particulateMatter;
+    }
+
+    /**
+     * @param   particulateMatter     the particulate matter to set
+     */
+    @Override
+    public void setData(double particulateMatter) {
+        this.particulateMatter = particulateMatter;
+    }
+}
diff --git a/hal-core/src/se/hal/struct/devicedata/TemperatureSensorData.java b/hal-core/src/se/hal/struct/devicedata/TemperatureSensorData.java
index 5fb4a10b..2d62e121 100644
--- a/hal-core/src/se/hal/struct/devicedata/TemperatureSensorData.java
+++ b/hal-core/src/se/hal/struct/devicedata/TemperatureSensorData.java
@@ -10,7 +10,7 @@ public class TemperatureSensorData extends HalSensorData {
 
     public TemperatureSensorData(){}
     public TemperatureSensorData(double temperature, long timestamp){
-        this.temperature =  temperature;
+        this.temperature = temperature;
         super.setTimestamp(timestamp);
     }