diff --git a/components/samsung_ac/__init__.py b/components/samsung_ac/__init__.py
index 7bf08cd..862c99b 100644
--- a/components/samsung_ac/__init__.py
+++ b/components/samsung_ac/__init__.py
@@ -8,10 +8,14 @@
     DEVICE_CLASS_HUMIDITY,
     CONF_UNIT_OF_MEASUREMENT,
     CONF_DEVICE_CLASS,
+    CONF_FILTERS,
     UNIT_CELSIUS,
     UNIT_PERCENT,
 )
-from esphome.core import CORE
+from esphome.core import (
+    CORE, 
+    Lambda
+)
 
 CODEOWNERS = ["matthias882", "lanwin"]
 DEPENDENCIES = ["uart"]
@@ -54,6 +58,47 @@
 CONF_DEVICE_POWER = "power"
 CONF_DEVICE_MODE = "mode"
 CONF_DEVICE_CLIMATE = "climate"
+CONF_DEVICE_CUSTOM = "custom_sensor"
+CONF_RAW_FILTERS = "raw_filters"
+CONF_DEVICE_MESSAGE = "message"
+CUSTOM_SENSOR_SCHEMA = sensor.sensor_schema().extend({
+    cv.Required(CONF_DEVICE_MESSAGE): cv.hex_int,
+})
+
+def custom_sensor_schema(
+    message: int,
+    unit_of_measurement: str = sensor._UNDEF,
+    icon: str = sensor._UNDEF,
+    accuracy_decimals: int = sensor._UNDEF,
+    device_class: str = sensor._UNDEF,
+    state_class: str = sensor._UNDEF,
+    entity_category: str = sensor._UNDEF,
+    raw_filters = []
+):
+    return sensor.sensor_schema(
+        unit_of_measurement=unit_of_measurement,
+        icon=icon,
+        accuracy_decimals=accuracy_decimals,
+        device_class=device_class,
+        state_class=state_class,
+        entity_category=entity_category,
+    ).extend({
+        cv.Optional(CONF_DEVICE_MESSAGE, default=message): cv.hex_int,
+        cv.Optional(CONF_RAW_FILTERS, default=raw_filters): sensor.validate_filters
+    })
+
+def temperature_sensor_schema(message: int):
+    return custom_sensor_schema(
+        message=message,
+        unit_of_measurement=UNIT_CELSIUS,
+        accuracy_decimals=1,
+        device_class=DEVICE_CLASS_TEMPERATURE,
+        state_class=STATE_CLASS_MEASUREMENT,
+        raw_filters=[
+            { "lambda": Lambda("return (int16_t)x;") },
+            { "multiply": 0.1 }
+        ],
+    )
 
 DEVICE_SCHEMA = (
     cv.Schema(
@@ -88,6 +133,7 @@
             cv.Optional(CONF_DEVICE_POWER): switch.switch_schema(Samsung_AC_Switch),
             cv.Optional(CONF_DEVICE_MODE): SELECT_MODE_SCHEMA,
             cv.Optional(CONF_DEVICE_CLIMATE): CLIMATE_SCHEMA,
+            cv.Optional(CONF_DEVICE_CUSTOM, default=[]): cv.ensure_list(CUSTOM_SENSOR_SCHEMA),
         }
     )
 )
@@ -177,6 +223,11 @@ async def to_code(config):
             var_cli = cg.new_Pvariable(conf[CONF_ID])
             await climate.register_climate(var_cli, conf)
             cg.add(var_dev.set_climate(var_cli))
+        
+        if CONF_DEVICE_CUSTOM in device:
+            for cust_sens in device[CONF_DEVICE_CUSTOM]:
+                sens = await sensor.new_sensor(cust_sens)
+                cg.add(var_dev.add_custom_sensor(cust_sens[CONF_DEVICE_MESSAGE], sens))
 
         cg.add(var.register_device(var_dev))
 
diff --git a/components/samsung_ac/protocol.h b/components/samsung_ac/protocol.h
index 7f38675..265d5e9 100644
--- a/components/samsung_ac/protocol.h
+++ b/components/samsung_ac/protocol.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <set>
 #include "esphome/core/optional.h"
 #include "util.h"
 
@@ -77,6 +78,8 @@ namespace esphome
             virtual void set_altmode(const std::string address, AltMode fanmode) = 0;
             virtual void set_swing_vertical(const std::string address, bool vertical) = 0;
             virtual void set_swing_horizontal(const std::string address, bool horizontal) = 0;
+            virtual optional<std::set<uint16_t>> get_custom_sensors(const std::string address) = 0;
+            virtual void set_custom_sensor(const std::string address, uint16_t message_number, float value) = 0;
         };
 
         struct ProtocolRequest
diff --git a/components/samsung_ac/protocol_nasa.cpp b/components/samsung_ac/protocol_nasa.cpp
index 36eefd5..9d9fe92 100644
--- a/components/samsung_ac/protocol_nasa.cpp
+++ b/components/samsung_ac/protocol_nasa.cpp
@@ -1,5 +1,6 @@
 #include <queue>
 #include <iostream>
+#include <set>
 #include "esphome/core/log.h"
 #include "esphome/core/util.h"
 #include "esphome/core/hal.h"
@@ -521,7 +522,7 @@ namespace esphome
             }
         }
 
-        void process_messageset(std::string source, std::string dest, MessageSet &message, MessageTarget *target)
+        void process_messageset(std::string source, std::string dest, MessageSet &message, optional<std::set<uint16_t>> &custom, MessageTarget *target)
         {
             if (debug_mqtt_connected())
             {
@@ -539,6 +540,11 @@ namespace esphome
                 }
             }
 
+            if (custom.has_value() && custom.value().find((uint16_t) message.messageNumber) != custom.value().end())
+            {
+                target->set_custom_sensor(source, (uint16_t) message.messageNumber, (float) message.value);
+            }
+
             switch (message.messageNumber)
             {
             case MessageNumber::VAR_in_temp_room_f: //  unit = 'Celsius' from XML
@@ -770,9 +776,10 @@ namespace esphome
             if (packet_.commad.dataType != DataType::Notification)
                 return;
 
+            optional<std::set<uint16_t>> custom = target->get_custom_sensors(source);
             for (auto &message : packet_.messages)
             {
-                process_messageset(source, dest, message, target);
+                process_messageset(source, dest, message, custom, target);
             }
         }
 
diff --git a/components/samsung_ac/samsung_ac.h b/components/samsung_ac/samsung_ac.h
index 4ac9770..ceb3e1c 100644
--- a/components/samsung_ac/samsung_ac.h
+++ b/components/samsung_ac/samsung_ac.h
@@ -138,6 +138,21 @@ namespace esphome
           dev->update_swing_horizontal(horizontal);
       }
 
+      optional<std::set<uint16_t>> /*MessageTarget::*/ get_custom_sensors(const std::string address) override
+      {
+        Samsung_AC_Device *dev = find_device(address);
+        if (dev != nullptr)
+          return optional<std::set<uint16_t>>(dev->get_custom_sensors());
+        return optional<std::set<uint16_t>>();
+      }
+      
+      void /*MessageTarget::*/ set_custom_sensor(const std::string address, uint16_t message_number, float value) override
+      {
+        Samsung_AC_Device *dev = find_device(address);
+        if (dev != nullptr)
+          dev->update_custom_sensor(message_number, value);
+      }
+
     protected:
       Samsung_AC_Device *find_device(const std::string address)
       {
diff --git a/components/samsung_ac/samsung_ac_device.cpp b/components/samsung_ac/samsung_ac_device.cpp
index fb03c82..df725c8 100644
--- a/components/samsung_ac/samsung_ac_device.cpp
+++ b/components/samsung_ac/samsung_ac_device.cpp
@@ -3,6 +3,7 @@
 #include "util.h"
 #include "conversions.h"
 #include <vector>
+#include <set>
 
 namespace esphome
 {
diff --git a/components/samsung_ac/samsung_ac_device.h b/components/samsung_ac/samsung_ac_device.h
index acdf456..3764750 100644
--- a/components/samsung_ac/samsung_ac_device.h
+++ b/components/samsung_ac/samsung_ac_device.h
@@ -65,6 +65,12 @@ namespace esphome
       }
     };
 
+    struct Samsung_AC_Sensor
+    {
+      uint16_t message_number;
+      sensor::Sensor *sensor;
+    };
+
     class Samsung_AC_Device
     {
     public:
@@ -84,6 +90,7 @@ namespace esphome
       Samsung_AC_Switch *power{nullptr};
       Samsung_AC_Mode_Select *mode{nullptr};
       Samsung_AC_Climate *climate{nullptr};
+      std::vector<Samsung_AC_Sensor> custom_sensors;
 
       void set_room_temperature_sensor(sensor::Sensor *sensor)
       {
@@ -105,6 +112,22 @@ namespace esphome
         room_humidity = sensor;
       }
 
+      void add_custom_sensor(int message_number, sensor::Sensor *sensor)
+      {
+        Samsung_AC_Sensor cust_sensor;
+        cust_sensor.message_number = (uint16_t) message_number;
+        cust_sensor.sensor = sensor;
+        custom_sensors.push_back(std::move(cust_sensor));
+      }
+
+      std::set<uint16_t> get_custom_sensors()
+      {
+        std::set<uint16_t> numbers;
+        for (auto &sensor: custom_sensors)
+          numbers.insert(sensor.message_number);
+        return numbers;
+      }
+
       void set_power_switch(Samsung_AC_Switch *switch_)
       {
         power = switch_;
@@ -263,6 +286,13 @@ namespace esphome
           room_humidity->publish_state(value);
       }
 
+      void update_custom_sensor(uint16_t message_number, float value)
+      {
+        for (auto &sensor: custom_sensors)
+          if (sensor.message_number == message_number)
+            sensor.sensor->publish_state(value);
+      }
+
       void publish_request(ProtocolRequest &request)
       {
         protocol->publish_request(target, address, request);