diff --git a/homeassistant/components/fronius/__init__.py b/homeassistant/components/fronius/__init__.py
index 23e595b71ce..12811e84079 100644
--- a/homeassistant/components/fronius/__init__.py
+++ b/homeassistant/components/fronius/__init__.py
@@ -153,7 +153,10 @@ class FroniusSolarNet:
         )
         if self.logger_coordinator:
             _logger_info = self.logger_coordinator.data[SOLAR_NET_ID_SYSTEM]
-            solar_net_device[ATTR_MODEL] = _logger_info["product_type"]["value"]
+            # API v0 doesn't provide product_type
+            solar_net_device[ATTR_MODEL] = _logger_info.get("product_type", {}).get(
+                "value", "Datalogger Web"
+            )
             solar_net_device[ATTR_SW_VERSION] = _logger_info["software_version"][
                 "value"
             ]