Index: firmware/App/Drivers/ConductivityTeensy.h
===================================================================
diff -u -r811395ecb8574f4190671ffdf4217675a7adfbf7 -r5d7b4ae06bb86aa580c407829367785e6b97acc8
--- firmware/App/Drivers/ConductivityTeensy.h	(.../ConductivityTeensy.h)	(revision 811395ecb8574f4190671ffdf4217675a7adfbf7)
+++ firmware/App/Drivers/ConductivityTeensy.h	(.../ConductivityTeensy.h)	(revision 5d7b4ae06bb86aa580c407829367785e6b97acc8)
@@ -8,7 +8,7 @@
 * @file    ConductivityTeensy.h
 *
 * @author  (last)      Michael Garthwaite
-* @date    (last)      09-Feb-2026
+* @date    (last)      06-Mar-2026
 *
 * @author  (original)  Arpita Srivastava
 * @date    (original)  03-Nov-2025
@@ -19,30 +19,13 @@
 #define _CONDUCTIVITY_TEENSY_H_
 
 #include "DDCommon.h"
-
+#include "ConductivitySensors.h"
 // ********** public definitions **********
 
 #define DOUBLE_COUNT                8               ///< Number of double values in Teensy EEPROM data
 #define FLOAT_COUNT                 16              ///< Number of float values in Teensy EEPROM data
 #define MAX_COND_MST_PARAM_IDX      7               ///< Total number of parameters in measurement settings CONDUCTIVITY_MEASUREMENT_SETTINGS_T
 
-/// Enumeration of conductivity sensors.
-typedef enum ConductivitySensors
-{
-    D17_COND = 0,                                   ///< Bicarb only conductivity sensor - 1
-    FIRST_DD_COND_SENSOR = D17_COND,                ///< First conductivity sensor
-    D27_COND,                                       ///< Acid and Bicarb mix conductivity sensor - 1
-    D29_COND,                                       ///< Acid and Bicarb mix conductivity sensor - 2
-    D43_COND,                                       ///< Spent dialysate conductivity sensor
-    D74_COND,                                       ///< Bicarb only conductivity sensor - 2
-    LAST_DD_COND_SENSOR = D74_COND,                 ///< Last conductivity sensor
-    P9_COND,                                        ///< Inlet water conductivity sensor
-    FIRST_FP_COND_SENSOR = P9_COND,                 ///< First FP conductivity sensor
-    P18_COND,                                       ///< RO outlet water conductivity sensor
-    LAST_FP_COND_SENSOR = P18_COND,                 ///< Last FP conductivity sensor
-    NUM_OF_CONDUCTIVITY_SENSORS                     ///< Number of conductivity sensors
-} CONDUCTIVITY_SENSORS_T;
-
 /// Enumeration of Teensy Sensor Index values
 typedef enum TeensySensorIndex
 {