diff --git a/src/helpers/sensors/EnvironmentSensorManager.cpp b/src/helpers/sensors/EnvironmentSensorManager.cpp
index a75d378c8..2478c69b1 100644
--- a/src/helpers/sensors/EnvironmentSensorManager.cpp
+++ b/src/helpers/sensors/EnvironmentSensorManager.cpp
@@ -338,7 +338,8 @@ bool EnvironmentSensorManager::querySensors(uint8_t requester_permissions, Cayen
   next_available_channel = TELEM_CHANNEL_SELF + 1;
 
   if (requester_permissions & TELEM_PERM_LOCATION && gps_active) {
-    telemetry.addGPS(TELEM_CHANNEL_SELF, node_lat, node_lon, node_altitude); // allow lat/lon via telemetry even if no GPS is detected
+    telemetry.addGPS(TELEM_CHANNEL_SELF, node_lat, node_lon, node_altitude);
+    telemetry.addSwitch(TELEM_CHANNEL_SELF, gps_has_fix);
   }
 
   if (requester_permissions & TELEM_PERM_ENVIRONMENT) {
@@ -718,6 +719,9 @@ void EnvironmentSensorManager::loop() {
       MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
       node_altitude = ((double)_location->getAltitude()) / 1000.0;
       MESH_DEBUG_PRINTLN("lat %f lon %f alt %f", node_lat, node_lon, node_altitude);
+      gps_has_fix = true;
+    } else {
+      gps_has_fix = false;
     }
     #else
     if (_location->isValid()) {
@@ -726,6 +730,9 @@ void EnvironmentSensorManager::loop() {
       MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
       node_altitude = ((double)_location->getAltitude()) / 1000.0;
       MESH_DEBUG_PRINTLN("lat %f lon %f alt %f", node_lat, node_lon, node_altitude);
+      gps_has_fix = true;
+    } else {
+      gps_has_fix = false;
     }
     #endif
     }
diff --git a/src/helpers/sensors/EnvironmentSensorManager.h b/src/helpers/sensors/EnvironmentSensorManager.h
index f176a33f5..0f613bf9c 100644
--- a/src/helpers/sensors/EnvironmentSensorManager.h
+++ b/src/helpers/sensors/EnvironmentSensorManager.h
@@ -25,6 +25,7 @@ class EnvironmentSensorManager : public SensorManager {
 
   bool gps_detected = false;
   bool gps_active = false;
+  bool gps_has_fix = false;  // true only when _location->isValid() — reset on fix loss
   uint32_t gps_update_interval_sec = 1;  // Default 1 second
 
   #if ENV_INCLUDE_GPS