Index: firmware/App/Services/StateServices/TubeSetInstall.c
===================================================================
diff -u -rce9145f506c3b7b970285bf2ab2e464b66f83bab -r027a8c7ac2a20cae3304dd6d72d54a1edbc19820
--- firmware/App/Services/StateServices/TubeSetInstall.c	(.../TubeSetInstall.c)	(revision ce9145f506c3b7b970285bf2ab2e464b66f83bab)
+++ firmware/App/Services/StateServices/TubeSetInstall.c	(.../TubeSetInstall.c)	(revision 027a8c7ac2a20cae3304dd6d72d54a1edbc19820)
@@ -8,7 +8,7 @@
 * @file    TubeSetInstall.c
 *
 * @author  (last)      Praneeth Bunne
-* @date    (last)      04-Jun-2026
+* @date    (last)      26-Jun-2026
 *
 * @author  (original)  Praneeth Bunne
 * @date    (original)  01-May-2026
@@ -52,6 +52,8 @@
 static TUBE_SET_INSTALL_STATE_T previousInstallState;                         ///< Previous tube set install sub-state
 static TUBE_SET_INSTALL_STATE_T currentInstallState;                          ///< Current tubing set install sub-state
 
+static TUBE_SET_TYPE_T currentTubeSetType;                                    ///< Current installed tube set type
+
 // ********** private function prototypes **********
 
 static TUBE_SET_INSTALL_STATE_T handleAwaitTubesetConfirmationState( void );          ///< Handle Await Tubset Install Confirmation sub-state
@@ -78,6 +80,7 @@
     bloodPumpTimerCounter     = 0;
     bpLastHome                = TRUE;
     bpLeftHomeTimerCounter    = 0;
+    currentTubeSetType     = TUBE_SET_TYPE_UNKNOWN;
 }
 
 /*********************************************************************//**
@@ -124,8 +127,8 @@
 
     if ( previousInstallState != currentInstallState )
     {
-        previousInstallState = currentInstallState;
         SEND_EVENT_WITH_2_U32_DATA( TD_EVENT_SUB_STATE_CHANGE, previousInstallState, currentInstallState );
+        previousInstallState = currentInstallState;
     }
 }
 
@@ -418,4 +421,71 @@
     return result;
 }
 
+/*********************************************************************//**
+* The setTubeSetType function sets the current installed tube set type.
+ * @details \b Alarms: ALARM_ID_TD_SOFTWARE_FAULT if tube set is invalid type
+ * @details \b Inputs: none
+ * @details \b Outputs: currentTubeSetType
+ * @param type Tube set type determined from barcode scan.
+ * @return none
+ *************************************************************************/
+void setTubeSetType( TUBE_SET_TYPE_T type )
+{
+    if ( type < NUM_OF_TUBE_SET_TYPES )
+    {
+        currentTubeSetType = type;
+    }
+    else
+    {
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_TD_SOFTWARE_FAULT, SW_FAULT_ID_INVALID_TUBE_SET_TYPE, (U32)type );
+    }
+}
+
+/*********************************************************************//**
+ * @brief
+ * The getTubeSetType function returns the current installed tube set type.
+ * @details \b Inputs: currentTubeSetType
+ * @details \b Outputs: none
+ * @return Current installed tube set type.
+ *************************************************************************/
+TUBE_SET_TYPE_T getTubeSetType( void )
+{
+    return currentTubeSetType;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The validateTubeSetType function validates the current installed tube set type
+ * based on modality.
+ * @details \b Alarm:
+ * @details \b Inputs: none
+ * @details \b Outputs: none
+ * @return none.
+ *************************************************************************/
+void validateTubeSetType( void )
+{
+    U32 modality = getTreatmentParameterU32( TREATMENT_PARAM_TREATMENT_MODALITY );
+    BOOL misMatch = FALSE;
+
+    if ( TREATMENT_MODALITY_HDF_ONLINE_FLUID == modality )
+    {
+        if ( TUBE_SET_TYPE_HDF != currentTubeSetType )
+        {
+            misMatch = TRUE;
+        }
+    }
+    else
+    {
+        if ( TREATMENT_MODALITY_HD_SALINE_FLUID != currentTubeSetType )
+        {
+            misMatch = TRUE;
+        }
+    }
+
+    if ( TRUE == misMatch )
+    {
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_TD_TUBE_SET_MISMATCH, modality, (U32)currentTubeSetType );
+    }
+}
+
 /**@}*/