diff --git a/circuitmatter/clusters/measurement/__init__.py b/circuitmatter/clusters/measurement/__init__.py
new file mode 100644
index 0000000..76abc07
--- /dev/null
+++ b/circuitmatter/clusters/measurement/__init__.py
@@ -0,0 +1,3 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024 Scott Shawcroft for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
diff --git a/circuitmatter/clusters/measurement/temperature_measurement.py b/circuitmatter/clusters/measurement/temperature_measurement.py
index ef3ce24..54f789d 100644
--- a/circuitmatter/clusters/measurement/temperature_measurement.py
+++ b/circuitmatter/clusters/measurement/temperature_measurement.py
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024 Scott Shawcroft for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""Temperature cluster."""
+
 from circuitmatter import data_model
 
 
diff --git a/circuitmatter/device_types/sensor/__init__.py b/circuitmatter/device_types/sensor/__init__.py
new file mode 100644
index 0000000..76abc07
--- /dev/null
+++ b/circuitmatter/device_types/sensor/__init__.py
@@ -0,0 +1,3 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024 Scott Shawcroft for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
diff --git a/circuitmatter/device_types/sensor/temperature_sensor.py b/circuitmatter/device_types/sensor/temperature_sensor.py
index a77ac09..7a91912 100644
--- a/circuitmatter/device_types/sensor/temperature_sensor.py
+++ b/circuitmatter/device_types/sensor/temperature_sensor.py
@@ -1,15 +1,24 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024 Scott Shawcroft for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""Temperature sensor device with an random temperature."""
+
+import random
+
 from circuitmatter.clusters.general.identify import Identify
 from circuitmatter.clusters.measurement.temperature_measurement import (
     TemperatureMeasurement,
 )
-from .. import simple_device
 
-import random
+from .. import simple_device
 
 
 class TemperatureSensor(simple_device.SimpleDevice):
+    """Temperature sensor device with an random temperature."""
+
     DEVICE_TYPE_ID = 0x0302
-    REVISION = 4
+    REVISION = 2
 
     def __init__(self, name):
         super().__init__(name)
@@ -19,7 +28,4 @@ def __init__(self, name):
 
         self._temp = TemperatureMeasurement()
         self.servers.append(self._temp)
-
-        self._temp.MeasuredValue = random.randint(
-            1500, 2500
-        )  # Random temp between 15°C and 25°C
+        self._temp.MeasuredValue = random.randint(1500, 2500)  # Random temp between 15°C and 25°C