diff --git a/homeassistant/components/device_automation/__init__.py b/homeassistant/components/device_automation/__init__.py
index 0be1c3eb1dd..80e64033295 100644
--- a/homeassistant/components/device_automation/__init__.py
+++ b/homeassistant/components/device_automation/__init__.py
@@ -156,7 +156,11 @@ async def _async_get_device_automation_capabilities(hass, automation_type, autom
         # The device automation has no capabilities
         return {}
 
-    capabilities = await getattr(platform, function_name)(hass, automation)
+    try:
+        capabilities = await getattr(platform, function_name)(hass, automation)
+    except InvalidDeviceAutomationConfig:
+        return {}
+
     capabilities = capabilities.copy()
 
     extra_fields = capabilities.get("extra_fields")
diff --git a/homeassistant/components/sensor/device_condition.py b/homeassistant/components/sensor/device_condition.py
index 26479807991..259fb5dbab9 100644
--- a/homeassistant/components/sensor/device_condition.py
+++ b/homeassistant/components/sensor/device_condition.py
@@ -2,6 +2,9 @@
 from typing import Dict, List
 import voluptuous as vol
 
+from homeassistant.components.device_automation.exceptions import (
+    InvalidDeviceAutomationConfig,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.const import (
     ATTR_DEVICE_CLASS,
@@ -141,3 +144,27 @@ def async_condition_from_config(
         numeric_state_config[condition.CONF_BELOW] = config[CONF_BELOW]
 
     return condition.async_numeric_state_from_config(numeric_state_config)
+
+
+async def async_get_condition_capabilities(hass, config):
+    """List condition capabilities."""
+    state = hass.states.get(config[CONF_ENTITY_ID])
+    unit_of_measurement = (
+        state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) if state else None
+    )
+
+    if not state or not unit_of_measurement:
+        raise InvalidDeviceAutomationConfig
+
+    return {
+        "extra_fields": vol.Schema(
+            {
+                vol.Optional(
+                    CONF_ABOVE, description={"suffix": unit_of_measurement}
+                ): vol.Coerce(float),
+                vol.Optional(
+                    CONF_BELOW, description={"suffix": unit_of_measurement}
+                ): vol.Coerce(float),
+            }
+        )
+    }
diff --git a/homeassistant/components/sensor/device_trigger.py b/homeassistant/components/sensor/device_trigger.py
index b462124165a..73e55340da9 100644
--- a/homeassistant/components/sensor/device_trigger.py
+++ b/homeassistant/components/sensor/device_trigger.py
@@ -3,6 +3,9 @@ import voluptuous as vol
 
 import homeassistant.components.automation.numeric_state as numeric_state_automation
 from homeassistant.components.device_automation import TRIGGER_BASE_SCHEMA
+from homeassistant.components.device_automation.exceptions import (
+    InvalidDeviceAutomationConfig,
+)
 from homeassistant.const import (
     ATTR_DEVICE_CLASS,
     ATTR_UNIT_OF_MEASUREMENT,
@@ -146,9 +149,12 @@ async def async_get_trigger_capabilities(hass, config):
     """List trigger capabilities."""
     state = hass.states.get(config[CONF_ENTITY_ID])
     unit_of_measurement = (
-        state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) if state else ""
+        state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) if state else None
     )
 
+    if not state or not unit_of_measurement:
+        raise InvalidDeviceAutomationConfig
+
     return {
         "extra_fields": vol.Schema(
             {
diff --git a/tests/components/sensor/test_device_condition.py b/tests/components/sensor/test_device_condition.py
index e28e487f4ef..f3ff15c3ad9 100644
--- a/tests/components/sensor/test_device_condition.py
+++ b/tests/components/sensor/test_device_condition.py
@@ -14,6 +14,7 @@ from tests.common import (
     mock_device_registry,
     mock_registry,
     async_get_device_automations,
+    async_get_device_automation_capabilities,
 )
 from tests.testing_config.custom_components.test.sensor import DEVICE_CLASSES
 
@@ -73,6 +74,86 @@ async def test_get_conditions(hass, device_reg, entity_reg):
     assert conditions == expected_conditions
 
 
+async def test_get_condition_capabilities(hass, device_reg, entity_reg):
+    """Test we get the expected capabilities from a sensor condition."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    config_entry = MockConfigEntry(domain="test", data={})
+    config_entry.add_to_hass(hass)
+    device_entry = device_reg.async_get_or_create(
+        config_entry_id=config_entry.entry_id,
+        connections={(device_registry.CONNECTION_NETWORK_MAC, "12:34:56:AB:CD:EF")},
+    )
+    entity_reg.async_get_or_create(
+        DOMAIN,
+        "test",
+        platform.ENTITIES["battery"].unique_id,
+        device_id=device_entry.id,
+    )
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+
+    expected_capabilities = {
+        "extra_fields": [
+            {
+                "description": {"suffix": "%"},
+                "name": "above",
+                "optional": True,
+                "type": "float",
+            },
+            {
+                "description": {"suffix": "%"},
+                "name": "below",
+                "optional": True,
+                "type": "float",
+            },
+        ]
+    }
+    conditions = await async_get_device_automations(hass, "condition", device_entry.id)
+    assert len(conditions) == 1
+    for condition in conditions:
+        capabilities = await async_get_device_automation_capabilities(
+            hass, "condition", condition
+        )
+        assert capabilities == expected_capabilities
+
+
+async def test_get_condition_capabilities_none(hass, device_reg, entity_reg):
+    """Test we get the expected capabilities from a sensor condition."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    config_entry = MockConfigEntry(domain="test", data={})
+    config_entry.add_to_hass(hass)
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+
+    conditions = [
+        {
+            "condition": "device",
+            "device_id": "8770c43885354d5fa27604db6817f63f",
+            "domain": "sensor",
+            "entity_id": "sensor.beer",
+            "type": "is_battery_level",
+        },
+        {
+            "condition": "device",
+            "device_id": "8770c43885354d5fa27604db6817f63f",
+            "domain": "sensor",
+            "entity_id": platform.ENTITIES["none"].entity_id,
+            "type": "is_battery_level",
+        },
+    ]
+
+    expected_capabilities = {}
+    for condition in conditions:
+        capabilities = await async_get_device_automation_capabilities(
+            hass, "condition", condition
+        )
+        assert capabilities == expected_capabilities
+
+
 async def test_if_state_not_above_below(hass, calls, caplog):
     """Test for bad value conditions."""
     platform = getattr(hass.components, f"test.{DOMAIN}")
diff --git a/tests/components/sensor/test_device_trigger.py b/tests/components/sensor/test_device_trigger.py
index a21839fcebc..b7a921fff18 100644
--- a/tests/components/sensor/test_device_trigger.py
+++ b/tests/components/sensor/test_device_trigger.py
@@ -124,6 +124,41 @@ async def test_get_trigger_capabilities(hass, device_reg, entity_reg):
         assert capabilities == expected_capabilities
 
 
+async def test_get_trigger_capabilities_none(hass, device_reg, entity_reg):
+    """Test we get the expected capabilities from a sensor trigger."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    config_entry = MockConfigEntry(domain="test", data={})
+    config_entry.add_to_hass(hass)
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+
+    triggers = [
+        {
+            "platform": "device",
+            "device_id": "8770c43885354d5fa27604db6817f63f",
+            "domain": "sensor",
+            "entity_id": "sensor.beer",
+            "type": "is_battery_level",
+        },
+        {
+            "platform": "device",
+            "device_id": "8770c43885354d5fa27604db6817f63f",
+            "domain": "sensor",
+            "entity_id": platform.ENTITIES["none"].entity_id,
+            "type": "is_battery_level",
+        },
+    ]
+
+    expected_capabilities = {}
+    for trigger in triggers:
+        capabilities = await async_get_device_automation_capabilities(
+            hass, "trigger", trigger
+        )
+        assert capabilities == expected_capabilities
+
+
 async def test_if_fires_not_on_above_below(hass, calls, caplog):
     """Test for value triggers firing."""
     platform = getattr(hass.components, f"test.{DOMAIN}")