diff --git a/homeassistant/components/rfxtrx/__init__.py b/homeassistant/components/rfxtrx/__init__.py
index 0fdab9f1bf5..edae34d7e37 100644
--- a/homeassistant/components/rfxtrx/__init__.py
+++ b/homeassistant/components/rfxtrx/__init__.py
@@ -229,7 +229,7 @@ def setup_internal(hass, config):
             "sub_type": event.device.subtype,
             "type_string": event.device.type_string,
             "id_string": event.device.id_string,
-            "data": "".join(f"{x:02x}" for x in event.data),
+            "data": binascii.hexlify(event.data).decode("ASCII"),
             "values": getattr(event, "values", None),
         }
 
@@ -375,7 +375,7 @@ def get_device_id(device, data_bits=None):
     if data_bits and device.packettype == DEVICE_PACKET_TYPE_LIGHTING4:
         masked_id = get_pt2262_deviceid(id_string, data_bits)
         if masked_id:
-            id_string = str(masked_id)
+            id_string = masked_id.decode("ASCII")
 
     return (f"{device.packettype:x}", f"{device.subtype:x}", id_string)
 
diff --git a/homeassistant/components/rfxtrx/cover.py b/homeassistant/components/rfxtrx/cover.py
index 047f7c67a21..58bc27d95bb 100644
--- a/homeassistant/components/rfxtrx/cover.py
+++ b/homeassistant/components/rfxtrx/cover.py
@@ -7,6 +7,7 @@ from homeassistant.core import callback
 
 from . import (
     CONF_AUTOMATIC_ADD,
+    CONF_DATA_BITS,
     CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS,
     SIGNAL_EVENT,
@@ -38,7 +39,9 @@ async def async_setup_entry(
         if not supported(event):
             continue
 
-        device_id = get_device_id(event.device)
+        device_id = get_device_id(
+            event.device, data_bits=entity_info.get(CONF_DATA_BITS)
+        )
         if device_id in device_ids:
             continue
         device_ids.add(device_id)
diff --git a/homeassistant/components/rfxtrx/light.py b/homeassistant/components/rfxtrx/light.py
index 376e8b515be..ab24520e485 100644
--- a/homeassistant/components/rfxtrx/light.py
+++ b/homeassistant/components/rfxtrx/light.py
@@ -13,6 +13,7 @@ from homeassistant.core import callback
 
 from . import (
     CONF_AUTOMATIC_ADD,
+    CONF_DATA_BITS,
     CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS,
     SIGNAL_EVENT,
@@ -50,7 +51,9 @@ async def async_setup_entry(
         if not supported(event):
             continue
 
-        device_id = get_device_id(event.device)
+        device_id = get_device_id(
+            event.device, data_bits=entity_info.get(CONF_DATA_BITS)
+        )
         if device_id in device_ids:
             continue
         device_ids.add(device_id)
diff --git a/homeassistant/components/rfxtrx/sensor.py b/homeassistant/components/rfxtrx/sensor.py
index 34e6dc1b310..490885bec7a 100644
--- a/homeassistant/components/rfxtrx/sensor.py
+++ b/homeassistant/components/rfxtrx/sensor.py
@@ -14,6 +14,7 @@ from homeassistant.core import callback
 
 from . import (
     CONF_AUTOMATIC_ADD,
+    CONF_DATA_BITS,
     DATA_TYPES,
     SIGNAL_EVENT,
     RfxtrxEntity,
@@ -64,7 +65,7 @@ async def async_setup_entry(
         return isinstance(event, (ControlEvent, SensorEvent))
 
     entities = []
-    for packet_id in discovery_info[CONF_DEVICES]:
+    for packet_id, entity in discovery_info[CONF_DEVICES].items():
         event = get_rfx_object(packet_id)
         if event is None:
             _LOGGER.error("Invalid device: %s", packet_id)
@@ -72,7 +73,7 @@ async def async_setup_entry(
         if not supported(event):
             continue
 
-        device_id = get_device_id(event.device)
+        device_id = get_device_id(event.device, data_bits=entity.get(CONF_DATA_BITS))
         for data_type in set(event.values) & set(DATA_TYPES):
             data_id = (*device_id, data_type)
             if data_id in data_ids:
diff --git a/homeassistant/components/rfxtrx/switch.py b/homeassistant/components/rfxtrx/switch.py
index cf8c26edecb..5f99c0761f0 100644
--- a/homeassistant/components/rfxtrx/switch.py
+++ b/homeassistant/components/rfxtrx/switch.py
@@ -9,6 +9,7 @@ from homeassistant.core import callback
 
 from . import (
     CONF_AUTOMATIC_ADD,
+    CONF_DATA_BITS,
     CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS,
     DOMAIN,
@@ -48,7 +49,9 @@ async def async_setup_entry(
         if not supported(event):
             continue
 
-        device_id = get_device_id(event.device)
+        device_id = get_device_id(
+            event.device, data_bits=entity_info.get(CONF_DATA_BITS)
+        )
         if device_id in device_ids:
             continue
         device_ids.add(device_id)