diff --git a/tests/test_thirdreality.py b/tests/test_thirdreality.py
new file mode 100644
index 0000000000..0d2af260d1
--- /dev/null
+++ b/tests/test_thirdreality.py
@@ -0,0 +1,40 @@
+"""Tests for Third Reality quirks."""
+
+
+import pytest
+from zigpy.zcl.clusters.security import IasZone
+
+import zhaquirks
+import zhaquirks.thirdreality.night_light
+
+from tests.common import ClusterListener
+
+zhaquirks.setup()
+
+
+@pytest.mark.parametrize("quirk", (zhaquirks.thirdreality.night_light.Nightlight,))
+async def test_third_reality_nightlight(zigpy_device_from_quirk, quirk):
+    """Test Third Reality night light forwarding motion attribute to IasZone cluster."""
+
+    device = zigpy_device_from_quirk(quirk)
+
+    ias_zone_cluster = device.endpoints[1].ias_zone
+    ias_zone_listener = ClusterListener(ias_zone_cluster)
+
+    ias_zone_status_id = IasZone.AttributeDefs.zone_status.id
+
+    third_reality_cluster = device.endpoints[1].in_clusters[0xFC00]
+
+    # 0x0002 is also used on manufacturer specific cluster for motion events
+    third_reality_cluster.update_attribute(0x0002, IasZone.ZoneStatus.Alarm_1)
+
+    assert len(ias_zone_listener.attribute_updates) == 1
+    assert ias_zone_listener.attribute_updates[0][0] == ias_zone_status_id
+    assert ias_zone_listener.attribute_updates[0][1] == IasZone.ZoneStatus.Alarm_1
+
+    # turn off motion alarm
+    third_reality_cluster.update_attribute(0x0002, 0)
+
+    assert len(ias_zone_listener.attribute_updates) == 2
+    assert ias_zone_listener.attribute_updates[1][0] == ias_zone_status_id
+    assert ias_zone_listener.attribute_updates[1][1] == 0
diff --git a/zhaquirks/thirdreality/night_light.py b/zhaquirks/thirdreality/night_light.py
new file mode 100644
index 0000000000..990b2b18e3
--- /dev/null
+++ b/zhaquirks/thirdreality/night_light.py
@@ -0,0 +1,106 @@
+"""Third Reality night light zigbee devices."""
+from zigpy.profiles import zha
+from zigpy.quirks import CustomCluster, CustomDevice
+from zigpy.zcl.clusters.general import (
+    Basic,
+    Groups,
+    Identify,
+    LevelControl,
+    MultistateInput,
+    OnOff,
+    Ota,
+    Scenes,
+)
+from zigpy.zcl.clusters.lighting import Color
+from zigpy.zcl.clusters.lightlink import LightLink
+from zigpy.zcl.clusters.measurement import IlluminanceMeasurement
+from zigpy.zcl.clusters.security import IasZone
+
+from zhaquirks import LocalDataCluster
+from zhaquirks.const import (
+    DEVICE_TYPE,
+    ENDPOINTS,
+    INPUT_CLUSTERS,
+    MODELS_INFO,
+    OUTPUT_CLUSTERS,
+    PROFILE_ID,
+)
+from zhaquirks.thirdreality import THIRD_REALITY
+
+THIRD_REALITY_CLUSTER_ID = 0xFC00
+THIRD_REALITY_MOTION_EVENT_ATTR_ID = 0x0002
+
+
+class ThirdRealitySpecificCluster(CustomCluster):
+    """Manufacturer specific cluster to relay motion event to IAS Zone cluster."""
+
+    cluster_id = THIRD_REALITY_CLUSTER_ID
+
+    def _update_attribute(self, attrid, value):
+        super()._update_attribute(attrid, value)
+        if attrid == THIRD_REALITY_MOTION_EVENT_ATTR_ID:
+            self.endpoint.ias_zone.update_attribute(
+                IasZone.AttributeDefs.zone_status.id, value
+            )
+
+
+class LocalIasZone(LocalDataCluster, IasZone):
+    """Local IAS Zone cluster."""
+
+    _CONSTANT_ATTRIBUTES = {
+        IasZone.AttributeDefs.zone_type.id: IasZone.ZoneType.Motion_Sensor
+    }
+
+
+class Nightlight(CustomDevice):
+    """Custom device for 3RSNL02043Z."""
+
+    signature = {
+        MODELS_INFO: [(THIRD_REALITY, "3RSNL02043Z")],
+        ENDPOINTS: {
+            1: {
+                PROFILE_ID: zha.PROFILE_ID,
+                DEVICE_TYPE: zha.DeviceType.COLOR_DIMMABLE_LIGHT,
+                INPUT_CLUSTERS: [
+                    Basic.cluster_id,
+                    Identify.cluster_id,
+                    Groups.cluster_id,
+                    Scenes.cluster_id,
+                    OnOff.cluster_id,
+                    LevelControl.cluster_id,
+                    MultistateInput.cluster_id,
+                    Color.cluster_id,
+                    IlluminanceMeasurement.cluster_id,
+                    LightLink.cluster_id,
+                    ThirdRealitySpecificCluster.cluster_id,
+                ],
+                OUTPUT_CLUSTERS: [
+                    Ota.cluster_id,
+                ],
+            }
+        },
+    }
+    replacement = {
+        ENDPOINTS: {
+            1: {
+                DEVICE_TYPE: zha.DeviceType.COLOR_DIMMABLE_LIGHT,
+                INPUT_CLUSTERS: [
+                    Basic.cluster_id,
+                    Identify.cluster_id,
+                    Groups.cluster_id,
+                    Scenes.cluster_id,
+                    OnOff.cluster_id,
+                    LevelControl.cluster_id,
+                    MultistateInput.cluster_id,
+                    Color.cluster_id,
+                    IlluminanceMeasurement.cluster_id,
+                    LightLink.cluster_id,
+                    LocalIasZone,
+                    ThirdRealitySpecificCluster,
+                ],
+                OUTPUT_CLUSTERS: [
+                    Ota.cluster_id,
+                ],
+            }
+        }
+    }