diff --git a/src/modules/DetectionSensorModule.cpp b/src/modules/DetectionSensorModule.cpp
index 5fcc8dcbd..18bd7890d 100644
--- a/src/modules/DetectionSensorModule.cpp
+++ b/src/modules/DetectionSensorModule.cpp
@@ -131,9 +131,12 @@ void DetectionSensorModule::sendDetectionMessage()
         p->decoded.payload.bytes[p->decoded.payload.size + 1] = '\0'; // Bell character
         p->decoded.payload.size++;
     }
-    LOG_INFO("Send message id=%d, dest=%x, msg=%.*s", p->id, p->to, p->decoded.payload.size, p->decoded.payload.bytes);
     lastSentToMesh = millis();
-    service->sendToMesh(p);
+    if (!channels.isDefaultChannel(0)) {
+        LOG_INFO("Send message id=%d, dest=%x, msg=%.*s", p->id, p->to, p->decoded.payload.size, p->decoded.payload.bytes);
+        service->sendToMesh(p);
+    } else
+        LOG_ERROR("Message not allow on Public channel");
     delete[] message;
 }
 
@@ -146,9 +149,12 @@ void DetectionSensorModule::sendCurrentStateMessage(bool state)
     p->want_ack = false;
     p->decoded.payload.size = strlen(message);
     memcpy(p->decoded.payload.bytes, message, p->decoded.payload.size);
-    LOG_INFO("Send message id=%d, dest=%x, msg=%.*s", p->id, p->to, p->decoded.payload.size, p->decoded.payload.bytes);
     lastSentToMesh = millis();
-    service->sendToMesh(p);
+    if (!channels.isDefaultChannel(0)) {
+        LOG_INFO("Send message id=%d, dest=%x, msg=%.*s", p->id, p->to, p->decoded.payload.size, p->decoded.payload.bytes);
+        service->sendToMesh(p);
+    } else
+        LOG_ERROR("Message not allow on Public channel");
     delete[] message;
 }