diff --git a/custom_components/format_ble_tracker/__init__.py b/custom_components/format_ble_tracker/__init__.py
index eb12238..cb05049 100644
--- a/custom_components/format_ble_tracker/__init__.py
+++ b/custom_components/format_ble_tracker/__init__.py
@@ -4,10 +4,11 @@
 import asyncio
 import json
 import logging
+
+# import numpy as np
+import math
 import time
 from typing import Any
-#import numpy as np
-import math
 
 import voluptuous as vol
 
@@ -61,9 +62,11 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         _LOGGER.info("Notifying alive to %s", alive_topic)
         await mqtt.async_publish(hass, alive_topic, True, 1, retain=True)
         hass.data[DOMAIN][entry.entry_id] = coordinator
-        hass.config_entries.async_setup_platforms(entry, PLATFORMS)
+        await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
     elif MERGE_IDS in entry.data:
-        hass.config_entries.async_setup_platforms(entry, [Platform.DEVICE_TRACKER])
+        await hass.config_entries.async_forward_entry_setups(
+            entry, [Platform.DEVICE_TRACKER]
+        )
 
     return True
 
@@ -98,7 +101,9 @@ def __init__(self, hass: HomeAssistant, data) -> None:
         """Initialise coordinator."""
         self.mac = data[MAC]
         self.expiration_time: int
+        self.min_rssi: int
         self.default_expiration_time: int = 2
+        self.default_min_rssi: int = -80
         given_name = data[NAME] if data.__contains__(NAME) else self.mac
         self.room_data = dict[str, int]()
         self.filtered_room_data = dict[str, int]()
@@ -106,6 +111,7 @@ def __init__(self, hass: HomeAssistant, data) -> None:
         self.room_expiration_timers = dict[str, asyncio.TimerHandle]()
         self.room: str | None = None
         self.last_received_adv_time = None
+        self.time_from_previous = None
 
         super().__init__(hass, _LOGGER, name=given_name)
 
@@ -137,23 +143,29 @@ async def message_received(self, msg):
         try:
             data = MQTT_PAYLOAD(msg.payload)
         except vol.MultipleInvalid as error:
-            _LOGGER.debug("Skipping update because of malformatted data: %s", error)
+            _LOGGER.debug("Skipping malformed message: %s", error)
             return
         msg_time = data.get(TIMESTAMP)
         if msg_time is not None:
             current_time = int(time.time())
             if current_time - msg_time >= self.get_expiration_time():
-                _LOGGER.info("Received message with old timestamp, skipping")
+                _LOGGER.info("Skipping message with old timestamp")
                 return
-
-        self.time_from_previous = None if self.last_received_adv_time is None else (current_time  - self.last_received_adv_time)
+        rssi = data.get(RSSI)
+        if rssi < self.get_min_rssi():
+            _LOGGER.info("Skipping message with low RSSI (%s)", rssi)
+            return
+        self.time_from_previous = (
+            None
+            if self.last_received_adv_time is None
+            else (current_time - self.last_received_adv_time)
+        )
         self.last_received_adv_time = current_time
 
         room_topic = msg.topic.split("/")[2]
 
         await self.schedule_data_expiration(room_topic)
 
-        rssi = data.get(RSSI)
         self.room_data[room_topic] = rssi
         self.filtered_room_data[room_topic] = self.get_filtered_value(room_topic, rssi)
 
@@ -171,7 +183,7 @@ async def schedule_data_expiration(self, room):
         self.room_expiration_timers[room] = timer
 
     def get_filtered_value(self, room, value) -> int:
-        """Apply Kalman filter"""
+        """Apply Kalman filter."""
         k_filter: KalmanFilter
         if room in self.room_filters:
             k_filter = self.room_filters[room]
@@ -184,6 +196,10 @@ def get_expiration_time(self):
         """Calculate current expiration delay."""
         return getattr(self, "expiration_time", self.default_expiration_time) * 60
 
+    def get_min_rssi(self):
+        """Calculate current minimum RSSI to take."""
+        return getattr(self, "min_rssi", self.default_min_rssi)
+
     async def expire_data(self, room):
         """Set data for certain room expired."""
         del self.room_data[room]
@@ -200,65 +216,76 @@ async def on_expiration_time_changed(self, new_time: int):
         for room in self.room_expiration_timers.keys():
             await self.schedule_data_expiration(room)
 
+    async def on_min_rssi_changed(self, new_min_rssi: int):
+        """Respond to min RSSI changed by user."""
+        if new_min_rssi is None:
+            return
+        self.min_rssi = new_min_rssi
+
+
 class KalmanFilter:
     """Filtering RSSI data."""
 
-    cov = float('nan')
-    x = float('nan')
+    cov = float("nan")
+    param_x = float("nan")
+
+    def __init__(self, param_r, param_q):
+        """Initialize filter.
 
-    def __init__(self, R, Q):
-        """
-        Constructor
         :param R: Process Noise
         :param Q: Measurement Noise
         """
-        self.A = 1
-        self.B = 0
-        self.C = 1
+        self.param_a = 1
+        self.param_b = 0
+        self.param_c = 1
 
-        self.R = R
-        self.Q = Q
+        self.param_r = param_r
+        self.param_q = param_q
 
     def filter(self, measurement):
-        """
-        Filters a measurement
+        """Filter measurement.
+
         :param measurement: The measurement value to be filtered
         :return: The filtered value
         """
-        u = 0
-        if math.isnan(self.x):
-            self.x = (1 / self.C) * measurement
-            self.cov = (1 / self.C) * self.Q * (1 / self.C)
+        param_u = 0
+        if math.isnan(self.param_x):
+            self.param_x = (1 / self.param_c) * measurement
+            self.cov = (1 / self.param_c) * self.param_q * (1 / self.param_c)
         else:
-            pred_x = (self.A * self.x) + (self.B * u)
-            pred_cov = ((self.A * self.cov) * self.A) + self.R
+            pred_x = (self.param_a * self.param_x) + (self.param_b * param_u)
+            pred_cov = ((self.param_a * self.cov) * self.param_a) + self.param_r
 
             # Kalman Gain
-            K = pred_cov * self.C * (1 / ((self.C * pred_cov * self.C) + self.Q));
+            param_k = (
+                pred_cov
+                * self.param_c
+                * (1 / ((self.param_c * pred_cov * self.param_c) + self.param_q))
+            )
 
             # Correction
-            self.x = pred_x + K * (measurement - (self.C * pred_x));
-            self.cov = pred_cov - (K * self.C * pred_cov);
+            self.param_x = pred_x + param_k * (measurement - (self.param_c * pred_x))
+            self.cov = pred_cov - (param_k * self.param_c * pred_cov)
 
-        return self.x
+        return self.param_x
 
     def last_measurement(self):
-        """
-        Returns the last measurement fed into the filter
+        """Return the last measurement fed into the filter.
+
         :return: The last measurement fed into the filter
         """
-        return self.x
+        return self.param_x
 
     def set_measurement_noise(self, noise):
-        """
-        Sets measurement noise
+        """Set measurement noise.
+
         :param noise: The new measurement noise
         """
-        self.Q = noise
+        self.param_q = noise
 
     def set_process_noise(self, noise):
-        """
-        Sets process noise
+        """Set process noise.
+
         :param noise: The new process noise
         """
-        self.R = noise
\ No newline at end of file
+        self.param_r = noise
diff --git a/custom_components/format_ble_tracker/config_flow.py b/custom_components/format_ble_tracker/config_flow.py
index c70c4c2..a7f1be1 100644
--- a/custom_components/format_ble_tracker/config_flow.py
+++ b/custom_components/format_ble_tracker/config_flow.py
@@ -11,9 +11,9 @@
 from homeassistant.helpers import selector
 
 from .const import (
-    DOMAIN,
-    AWAY_WHEN_OR,
     AWAY_WHEN_AND,
+    AWAY_WHEN_OR,
+    DOMAIN,
     MAC,
     MAC_REGEX,
     MERGE_IDS,
@@ -47,7 +47,7 @@
 
 CONF_MERGE_LOGIC = {
     AWAY_WHEN_OR: "Show as away, when ANY tracker is away",
-    AWAY_WHEN_AND: "Show as away, when ALL trackers are away"
+    AWAY_WHEN_AND: "Show as away, when ALL trackers are away",
 }
 
 MERGE_SCHEMA = vol.Schema(
diff --git a/custom_components/format_ble_tracker/device_tracker.py b/custom_components/format_ble_tracker/device_tracker.py
index 7e1c7eb..d7e771a 100644
--- a/custom_components/format_ble_tracker/device_tracker.py
+++ b/custom_components/format_ble_tracker/device_tracker.py
@@ -12,10 +12,10 @@
 from .__init__ import BeaconCoordinator
 from .common import BeaconDeviceEntity
 from .const import (
+    AWAY_WHEN_AND,
+    AWAY_WHEN_OR,
     DOMAIN,
     ENTITY_ID,
-    AWAY_WHEN_OR,
-    AWAY_WHEN_AND,
     MERGE_IDS,
     MERGE_LOGIC,
     NAME,
diff --git a/custom_components/format_ble_tracker/manifest.json b/custom_components/format_ble_tracker/manifest.json
index 5513e8c..9122b60 100644
--- a/custom_components/format_ble_tracker/manifest.json
+++ b/custom_components/format_ble_tracker/manifest.json
@@ -1,7 +1,7 @@
 {
   "domain": "format_ble_tracker",
   "name": "Format BLE Tracker",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "config_flow": true,
   "documentation": "https://github.com/formatBCE/Format-BLE-Tracker/blob/main/README.md",
   "issue_tracker": "https://github.com/formatBCE/Format-BLE-Tracker/issues",
diff --git a/custom_components/format_ble_tracker/number.py b/custom_components/format_ble_tracker/number.py
index 5204130..e9c8d23 100644
--- a/custom_components/format_ble_tracker/number.py
+++ b/custom_components/format_ble_tracker/number.py
@@ -16,11 +16,13 @@ async def async_setup_entry(
     """Add sensor entities from a config_entry."""
 
     coordinator: BeaconCoordinator = hass.data[DOMAIN][entry.entry_id]
-    async_add_entities([BleDataExpirationNumber(coordinator)], True)
+    async_add_entities(
+        [BleDataExpirationNumber(coordinator), BleMinimumRssiNumber(coordinator)], True
+    )
 
 
 class BleDataExpirationNumber(BeaconDeviceEntity, RestoreNumber, NumberEntity):
-    """Define an room sensor entity."""
+    """Define expiration time number entity."""
 
     _attr_should_poll = False
 
@@ -39,7 +41,11 @@ def __init__(self, coordinator: BeaconCoordinator) -> None:
     async def async_added_to_hass(self):
         """Entity has been added to hass, restoring state."""
         restored = await self.async_get_last_number_data()
-        native_value = 2 if restored is None else restored.native_value
+        native_value = (
+            self.coordinator.default_expiration_time
+            if restored is None
+            else restored.native_value
+        )
         await self.update_value(native_value)
 
     async def async_set_native_value(self, value: float) -> None:
@@ -52,3 +58,42 @@ async def update_value(self, value: int):
         self._attr_native_value = value
         await self.coordinator.on_expiration_time_changed(value)
         self.async_write_ha_state()
+
+
+class BleMinimumRssiNumber(BeaconDeviceEntity, RestoreNumber, NumberEntity):
+    """Define minimum RSSI number entity."""
+
+    _attr_should_poll = False
+
+    def __init__(self, coordinator: BeaconCoordinator) -> None:
+        """Initialize."""
+        super().__init__(coordinator)
+        self._attr_name = coordinator.name + " minimum RSSI"
+        self._attr_mode = NumberMode.SLIDER
+        self._attr_native_unit_of_measurement = "dBm"
+        self._attr_native_max_value = -20
+        self._attr_native_min_value = -100
+        self._attr_native_step = 1
+        self._attr_unique_id = self.formatted_mac_address + "_min_rssi"
+        self.entity_id = f"{input_number.DOMAIN}.{self._attr_unique_id}"
+
+    async def async_added_to_hass(self):
+        """Entity has been added to hass, restoring state."""
+        restored = await self.async_get_last_number_data()
+        native_value = (
+            self.coordinator.default_min_rssi
+            if restored is None
+            else restored.native_value
+        )
+        await self.update_value(native_value)
+
+    async def async_set_native_value(self, value: float) -> None:
+        """Update the current value."""
+        val = min(-20, max(-100, int(value)))
+        await self.update_value(val)
+
+    async def update_value(self, value: int):
+        """Set value to HA and coordinator."""
+        self._attr_native_value = value
+        await self.coordinator.on_min_rssi_changed(value)
+        self.async_write_ha_state()
diff --git a/custom_components/format_ble_tracker/sensor.py b/custom_components/format_ble_tracker/sensor.py
index 9302bef..227edd8 100644
--- a/custom_components/format_ble_tracker/sensor.py
+++ b/custom_components/format_ble_tracker/sensor.py
@@ -47,4 +47,8 @@ def extra_state_attributes(self):
         attr["current_rooms"] = {}
         for key, value in self.coordinator.filtered_room_data.items():
             attr["current_rooms"][key] = f"{value} dBm"
+        attr["current_rooms_raw"] = {}
+        for key, value in self.coordinator.room_data.items():
+            attr["current_rooms_raw"][key] = f"{value} dBm"
+        attr["last_adv"] = self.coordinator.time_from_previous
         return attr