diff --git a/src/tests/ha_addon_sunsynk_multi/test_definitions3ph.py b/src/tests/ha_addon_sunsynk_multi/test_definitions3ph.py
deleted file mode 100644
index 68a329ae..00000000
--- a/src/tests/ha_addon_sunsynk_multi/test_definitions3ph.py
+++ /dev/null
@@ -1,11 +0,0 @@
-"""Test 3ph defs."""
-
-from sunsynk.definitions.single_phase import SENSORS as SENSORS1P
-from sunsynk.definitions.three_phase_common import SENSORS as SENSORS3P
-
-
-def test_ok() -> None:
-    """Test."""
-    assert len(SENSORS1P.serial.address) == len(SENSORS3P.serial.address)
-    assert SENSORS1P.rated_power
-    assert SENSORS3P.rated_power
diff --git a/src/tests/sunsynk/definitions/__init__.py b/src/tests/sunsynk/definitions/__init__.py
new file mode 100644
index 00000000..e4390193
--- /dev/null
+++ b/src/tests/sunsynk/definitions/__init__.py
@@ -0,0 +1 @@
+"""Sensor definitions."""
diff --git a/src/tests/sunsynk/definitions/test_init.py b/src/tests/sunsynk/definitions/test_init.py
new file mode 100644
index 00000000..6a347fc6
--- /dev/null
+++ b/src/tests/sunsynk/definitions/test_init.py
@@ -0,0 +1,16 @@
+"""Test sensor definitions."""
+
+from sunsynk.definitions import import_defs
+
+
+def test_import_defs() -> None:
+    """Test importing sensors."""
+    libs = (
+        "single_phase",
+        "three_phase_hv",
+        "three_phase_lv",
+    )
+    for lib in libs:
+        defs = import_defs(lib)
+        assert len(defs.all) > 50
+        assert defs.rated_power