diff --git a/twr/inc/twr_flood_detector.h b/twr/inc/twr_flood_detector.h
index 9cf43a37..de96ce01 100644
--- a/twr/inc/twr_flood_detector.h
+++ b/twr/inc/twr_flood_detector.h
@@ -15,7 +15,8 @@
 typedef enum
 {
     TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_A,
-    TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_B
+    TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_B,
+    TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_C
 
 } twr_flood_detector_type_t;
 
diff --git a/twr/src/twr_flood_detector.c b/twr/src/twr_flood_detector.c
index 5494ece8..95bb536f 100644
--- a/twr/src/twr_flood_detector.c
+++ b/twr/src/twr_flood_detector.c
@@ -109,6 +109,17 @@ static void _twr_flood_task_measure(void *param)
 					twr_gpio_set_mode(TWR_GPIO_P5, TWR_GPIO_MODE_INPUT);
 					break;
 				}
+                case TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_C:
+				{
+					if (!twr_module_sensor_init())
+					{
+						goto start;
+					}
+                    twr_module_sensor_set_vdd(true);
+					twr_gpio_init(TWR_GPIO_P7);
+					twr_gpio_set_mode(TWR_GPIO_P7, TWR_GPIO_MODE_INPUT);
+					break;
+				}
 				default:
 				{
 					goto start;
@@ -147,6 +158,11 @@ static void _twr_flood_task_measure(void *param)
 					twr_scheduler_plan_current_from_now(5);
 					break;
 				}
+                case TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_C:
+				{
+					twr_scheduler_plan_current_from_now(5);
+					break;
+				}
 				default:
 				{
 					goto start;
@@ -182,6 +198,11 @@ static void _twr_flood_task_measure(void *param)
 					}
 					break;
 				}
+                case TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_C:
+				{
+					self->_alarm = twr_gpio_get_input(TWR_GPIO_P7) == 1;
+					break;
+				}
 				default:
 				{
 					goto start;