diff --git a/homeassistant/components/met/.translations/en.json b/homeassistant/components/met/.translations/en.json
index 21ae7cb78fa..93d028b0626 100644
--- a/homeassistant/components/met/.translations/en.json
+++ b/homeassistant/components/met/.translations/en.json
@@ -1,7 +1,7 @@
 {
     "config": {
         "error": {
-            "name_exists": "Name already exists"
+            "name_exists": "Location already exists"
         },
         "step": {
             "user": {
diff --git a/homeassistant/components/met/config_flow.py b/homeassistant/components/met/config_flow.py
index 795ba57d988..c7ff4973c7d 100644
--- a/homeassistant/components/met/config_flow.py
+++ b/homeassistant/components/met/config_flow.py
@@ -12,9 +12,15 @@ from .const import DOMAIN, HOME_LOCATION_NAME, CONF_TRACK_HOME
 @callback
 def configured_instances(hass):
     """Return a set of configured SimpliSafe instances."""
-    return set(
-        entry.data[CONF_NAME] for entry in hass.config_entries.async_entries(DOMAIN)
-    )
+    entites = []
+    for entry in hass.config_entries.async_entries(DOMAIN):
+        if entry.data.get("track_home"):
+            entites.append("home")
+            continue
+        entites.append(
+            f"{entry.data.get(CONF_LATITUDE)}-{entry.data.get(CONF_LONGITUDE)}"
+        )
+    return set(entites)
 
 
 class MetFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
@@ -32,11 +38,13 @@ class MetFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
         self._errors = {}
 
         if user_input is not None:
-            if user_input[CONF_NAME] not in configured_instances(self.hass):
+            if (
+                f"{user_input.get(CONF_LATITUDE)}-{user_input.get(CONF_LONGITUDE)}"
+                not in configured_instances(self.hass)
+            ):
                 return self.async_create_entry(
                     title=user_input[CONF_NAME], data=user_input
                 )
-
             self._errors[CONF_NAME] = "name_exists"
 
         return await self._show_config_form(
diff --git a/homeassistant/components/met/strings.json b/homeassistant/components/met/strings.json
index f5c49bac3c4..0c52e624418 100644
--- a/homeassistant/components/met/strings.json
+++ b/homeassistant/components/met/strings.json
@@ -14,7 +14,7 @@
             }
         },
         "error": {
-            "name_exists": "Name already exists"
+            "name_exists": "Location already exists"
         }
     }
 }
diff --git a/tests/components/met/test_config_flow.py b/tests/components/met/test_config_flow.py
index 22061386b93..32f3be676e0 100644
--- a/tests/components/met/test_config_flow.py
+++ b/tests/components/met/test_config_flow.py
@@ -102,7 +102,7 @@ async def test_flow_entry_created_from_user_input():
 async def test_flow_entry_config_entry_already_exists():
     """Test that create data from user input and config_entry already exists.
 
-    Test when the form should show when user puts existing name
+    Test when the form should show when user puts existing location
     in the config gui. Then the form should show with error
     """
     hass = Mock()
@@ -112,6 +112,8 @@ async def test_flow_entry_config_entry_already_exists():
 
     first_entry = MockConfigEntry(domain="met")
     first_entry.data["name"] = "home"
+    first_entry.data[CONF_LONGITUDE] = "0"
+    first_entry.data[CONF_LATITUDE] = "0"
     first_entry.add_to_hass(hass)
 
     test_data = {