diff --git a/README.md b/README.md
index b0daab3..61ac7a0 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,15 @@
 
 1. Support of AHT10/AHT15/AHT20/AHT21/AHT25/AHT30.
 
+## Attention
+
+For correct operation, please enable the following settings in the menuconfig:
+
+```text
+I2C_ISR_IRAM_SAFE
+I2C_MASTER_ISR_HANDLER_IN_IRAM
+```
+
 ## Using
 
 In an existing project, run the following command to install the component:
@@ -32,6 +41,8 @@ Reading the sensor:
 
 #define I2C_PORT (I2C_NUM_MAX - 1)
 
+zh_aht_handle_t aht_handle = {0};
+
 void app_main(void)
 {
     esp_log_level_set("zh_aht", ESP_LOG_ERROR);
@@ -43,16 +54,16 @@ void app_main(void)
         .glitch_ignore_cnt = 7,
         .flags.enable_internal_pullup = true,
     };
-    i2c_master_bus_handle_t i2c_bus_handle;
+    i2c_master_bus_handle_t i2c_bus_handle = NULL;
     i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
-    zh_aht_init_config_t aht_init_config = ZH_AHT_INIT_CONFIG_DEFAULT();
-    aht_init_config.i2c_handle = i2c_bus_handle;
-    zh_aht_init(&aht_init_config);
+    zh_aht_init_config_t config = ZH_AHT_INIT_CONFIG_DEFAULT();
+    config.i2c_handle = i2c_bus_handle;
+    zh_aht_init(&config, &aht_handle);
     float humidity = 0.0;
     float temperature = 0.0;
     for (;;)
     {
-        zh_aht_read(&humidity, &temperature);
+        zh_aht_read(&aht_handle, &humidity, &temperature);
         printf("Humidity %0.2f\n", humidity);
         printf("Temperature %0.2f\n", temperature);
         vTaskDelay(5000 / portTICK_PERIOD_MS);
diff --git a/include/zh_aht.h b/include/zh_aht.h
index 635e6ed..05ab5c2 100644
--- a/include/zh_aht.h
+++ b/include/zh_aht.h
@@ -14,7 +14,7 @@
  */
 #define ZH_AHT_INIT_CONFIG_DEFAULT() \
     {                                \
-    }
+        .i2c_address = 0x38}
 
 #ifdef __cplusplus
 extern "C"
@@ -27,12 +27,23 @@ extern "C"
     typedef struct
     {
         i2c_master_bus_handle_t i2c_handle; /*!< Unique I2C bus handle. */
+        uint8_t i2c_address;                /*!< Sensor I2C address. */
     } zh_aht_init_config_t;
 
+    /**
+     * @brief AHT sensor handle.
+     */
+    typedef struct
+    {
+        bool is_initialized;                /*!< Sensor initialization flag. */
+        i2c_master_dev_handle_t dev_handle; /*!< Unique I2C device handle. */
+    } zh_aht_handle_t;
+
     /**
      * @brief Initialize AHT sensor.
      *
      * @param[in] config Pointer to AHT initialized configuration structure. Can point to a temporary variable.
+     * @param[out] handle Pointer to unique AHT handle.
      *
      * @attention I2C driver must be initialized first.
      *
@@ -42,24 +53,27 @@ extern "C"
      *
      * @return ESP_OK if success or an error code otherwise.
      */
-    esp_err_t zh_aht_init(const zh_aht_init_config_t *config);
+    esp_err_t zh_aht_init(const zh_aht_init_config_t *config, zh_aht_handle_t *handle);
 
     /**
      * @brief Read AHT sensor.
      *
+     * @param[in] handle Pointer to unique AHT handle.
      * @param[out] humidity Pointer for AHT sensor reading data of humidity.
      * @param[out] temperature Pointer for AHT sensor reading data of temperature.
      *
      * @return ESP_OK if success or an error code otherwise.
      */
-    esp_err_t zh_aht_read(float *humidity, float *temperature);
+    esp_err_t zh_aht_read(zh_aht_handle_t *handle, float *humidity, float *temperature);
 
     /**
      * @brief Reset AHT sensor.
      *
+     * @param[in] handle Pointer to unique AHT handle.
+     *
      * @return ESP_OK if success or an error code otherwise.
      */
-    esp_err_t zh_aht_reset(void);
+    esp_err_t zh_aht_reset(zh_aht_handle_t *handle);
 
 #ifdef __cplusplus
 }
diff --git a/version.txt b/version.txt
index 359a5b9..56fea8a 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.0.0
\ No newline at end of file
+3.0.0
\ No newline at end of file
diff --git a/zh_aht.c b/zh_aht.c
index 23d3a1f..2525fd1 100644
--- a/zh_aht.c
+++ b/zh_aht.c
@@ -16,35 +16,31 @@ static const char *TAG = "zh_aht";
 static const uint8_t _aht_reset_command = 0xBA;
 static const uint8_t _aht_read_command[] = {0xAC, 0x33, 0x00};
 static const uint8_t _aht_init_command[] = {0xBE, 0x08, 0x00};
-static zh_aht_init_config_t _init_config = {0};
-volatile static bool _is_initialized = false;
-static i2c_master_dev_handle_t _aht_handle = {0};
 
 static esp_err_t _zh_aht_validate_config(const zh_aht_init_config_t *config);
-static esp_err_t _zh_aht_i2c_init(const zh_aht_init_config_t *config);
+static esp_err_t _zh_aht_i2c_init(const zh_aht_init_config_t *config, zh_aht_handle_t *handle);
 static uint8_t _zh_aht_calc_crc(const uint8_t *buf, size_t len);
 
-esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
+esp_err_t zh_aht_init(const zh_aht_init_config_t *config, zh_aht_handle_t *handle)
 {
     ZH_LOGI("AHT initialization begin.");
-    ZH_ERROR_CHECK(config != NULL, ESP_ERR_INVALID_ARG, NULL, "AHT initialization failed. Invalid argument.");
+    ZH_ERROR_CHECK(config != NULL && handle != NULL, ESP_ERR_INVALID_ARG, NULL, "AHT initialization failed. Invalid argument.");
     ZH_ERROR_CHECK(_zh_aht_validate_config(config) == ESP_OK, ESP_FAIL, NULL, "AHT initialization failed. Initial configuration check failed.");
-    ZH_ERROR_CHECK(_zh_aht_i2c_init(config) == ESP_OK, ESP_FAIL, NULL, "AHT initialization failed. Failed to add I2C device.");
-    _init_config = *config;
-    _is_initialized = true;
+    ZH_ERROR_CHECK(_zh_aht_i2c_init(config, handle) == ESP_OK, ESP_FAIL, NULL, "AHT initialization failed. Failed to add I2C device.");
+    handle->is_initialized = true;
     ZH_LOGI("AHT initialization completed successfully.");
     return ESP_OK;
 }
 
-esp_err_t zh_aht_read(float *humidity, float *temperature)
+esp_err_t zh_aht_read(zh_aht_handle_t *handle, float *humidity, float *temperature)
 {
     ZH_LOGI("AHT read begin.");
-    ZH_ERROR_CHECK(_is_initialized == true, ESP_ERR_NOT_FOUND, NULL, "AHT read fail. AHT not initialized.");
-    ZH_ERROR_CHECK(humidity != NULL && temperature != NULL, ESP_ERR_INVALID_ARG, NULL, "AHT read fail. Invalid argument.");
+    ZH_ERROR_CHECK(humidity != NULL && temperature != NULL && handle != NULL, ESP_ERR_INVALID_ARG, NULL, "AHT read fail. Invalid argument.");
+    ZH_ERROR_CHECK(handle->is_initialized == true, ESP_ERR_NOT_FOUND, NULL, "AHT read fail. AHT not initialized.");
     uint8_t sensor_data[7] = {0};
-    ZH_ERROR_CHECK(i2c_master_transmit(_aht_handle, _aht_read_command, sizeof(_aht_read_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT read fail. I2C driver error.");
+    ZH_ERROR_CHECK(i2c_master_transmit(handle->dev_handle, _aht_read_command, sizeof(_aht_read_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT read fail. I2C driver error.");
     vTaskDelay(80 / portTICK_PERIOD_MS);
-    ZH_ERROR_CHECK(i2c_master_receive(_aht_handle, sensor_data, sizeof(sensor_data), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT read fail. I2C driver error.");
+    ZH_ERROR_CHECK(i2c_master_receive(handle->dev_handle, sensor_data, sizeof(sensor_data), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT read fail. I2C driver error.");
     ZH_ERROR_CHECK((sensor_data[0] & 0x80) == 0, ESP_ERR_TIMEOUT, NULL, "AHT read fail. Timeout exceeded.");
     ZH_ERROR_CHECK(_zh_aht_calc_crc(sensor_data, 6) == sensor_data[6], ESP_ERR_INVALID_CRC, NULL, "AHT read fail. Invalid CRC.");
     *humidity = (((((uint32_t)sensor_data[1]) << 16) | (((uint32_t)sensor_data[2]) << 8) | (((uint32_t)sensor_data[3]) << 0)) >> 4) / 1048576.0 * 100.0;
@@ -53,11 +49,12 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
     return ESP_OK;
 }
 
-esp_err_t zh_aht_reset(void)
+esp_err_t zh_aht_reset(zh_aht_handle_t *handle)
 {
     ZH_LOGI("AHT reset begin.");
-    ZH_ERROR_CHECK(_is_initialized == true, ESP_ERR_NOT_FOUND, NULL, "AHT reset fail. AHT not initialized.");
-    ZH_ERROR_CHECK(i2c_master_transmit(_aht_handle, &_aht_reset_command, sizeof(_aht_reset_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT reset fail. I2C driver error.");
+    ZH_ERROR_CHECK(handle != NULL, ESP_ERR_INVALID_ARG, NULL, "AHT reset fail. Invalid argument.");
+    ZH_ERROR_CHECK(handle->is_initialized == true, ESP_ERR_NOT_FOUND, NULL, "AHT reset fail. AHT not initialized.");
+    ZH_ERROR_CHECK(i2c_master_transmit(handle->dev_handle, &_aht_reset_command, sizeof(_aht_reset_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL, NULL, "AHT reset fail. I2C driver error.");
     vTaskDelay(20 / portTICK_PERIOD_MS);
     ZH_LOGI("AHT reset completed successfully.");
     return ESP_OK;
@@ -65,30 +62,33 @@ esp_err_t zh_aht_reset(void)
 
 static esp_err_t _zh_aht_validate_config(const zh_aht_init_config_t *config)
 {
+    ZH_ERROR_CHECK(config->i2c_address == 0x38 || config->i2c_address == 0x39, ESP_ERR_INVALID_ARG, NULL, "Invalid I2C address.");
     ZH_ERROR_CHECK(config->i2c_handle != NULL, ESP_ERR_INVALID_ARG, NULL, "Invalid I2C handle.");
     return ESP_OK;
 }
 
-static esp_err_t _zh_aht_i2c_init(const zh_aht_init_config_t *config)
+static esp_err_t _zh_aht_i2c_init(const zh_aht_init_config_t *config, zh_aht_handle_t *handle)
 {
     i2c_device_config_t aht_config = {
         .dev_addr_length = I2C_ADDR_BIT_LEN_7,
-        .device_address = 0x38,
+        .device_address = config->i2c_address,
         .scl_speed_hz = 100000,
     };
-    ZH_ERROR_CHECK(i2c_master_bus_add_device(config->i2c_handle, &aht_config, &_aht_handle) == ESP_OK, ESP_FAIL, NULL, "Add I2C device failed.");
+    i2c_master_dev_handle_t _dev_handle = NULL;
+    ZH_ERROR_CHECK(i2c_master_bus_add_device(config->i2c_handle, &aht_config, &_dev_handle) == ESP_OK, ESP_FAIL, NULL, "Add I2C device failed.");
     vTaskDelay(100 / portTICK_PERIOD_MS);
-    ZH_ERROR_CHECK(i2c_master_probe(config->i2c_handle, 0x38, 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_ERR_NOT_FOUND,
-                   ZH_ERROR_CHECK(i2c_master_bus_rm_device(_aht_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "Sensor not connected or not responded.");
+    ZH_ERROR_CHECK(i2c_master_probe(config->i2c_handle, config->i2c_address, 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_ERR_NOT_FOUND,
+                   ZH_ERROR_CHECK(i2c_master_bus_rm_device(_dev_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "Sensor not connected or not responded.");
     uint8_t sensor_data = 0;
-    ZH_ERROR_CHECK(i2c_master_receive(_aht_handle, &sensor_data, sizeof(sensor_data), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL,
-                   ZH_ERROR_CHECK(i2c_master_bus_rm_device(_aht_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "I2C driver error.");
+    ZH_ERROR_CHECK(i2c_master_receive(_dev_handle, &sensor_data, sizeof(sensor_data), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL,
+                   ZH_ERROR_CHECK(i2c_master_bus_rm_device(_dev_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "I2C driver error.");
     if ((sensor_data & 0x08) == 0)
     {
-        ZH_ERROR_CHECK(i2c_master_transmit(_aht_handle, _aht_init_command, sizeof(_aht_init_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL,
-                       ZH_ERROR_CHECK(i2c_master_bus_rm_device(_aht_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "I2C driver error.");
+        ZH_ERROR_CHECK(i2c_master_transmit(_dev_handle, _aht_init_command, sizeof(_aht_init_command), 1000 / portTICK_PERIOD_MS) == ESP_OK, ESP_FAIL,
+                       ZH_ERROR_CHECK(i2c_master_bus_rm_device(_dev_handle) == ESP_OK, ESP_FAIL, NULL, "I2C remove device failed."), "I2C driver error.");
         vTaskDelay(20 / portTICK_PERIOD_MS);
     }
+    handle->dev_handle = _dev_handle;
     return ESP_OK;
 }