diff --git a/homeassistant/components/switchbot/sensor.py b/homeassistant/components/switchbot/sensor.py
index e696f21e082aa9..0506022d44d3cb 100644
--- a/homeassistant/components/switchbot/sensor.py
+++ b/homeassistant/components/switchbot/sensor.py
@@ -10,6 +10,7 @@
     SensorStateClass,
 )
 from homeassistant.const import (
+    CONCENTRATION_PARTS_PER_MILLION,
     PERCENTAGE,
     SIGNAL_STRENGTH_DECIBELS_MILLIWATT,
     EntityCategory,
@@ -50,6 +51,13 @@
         state_class=SensorStateClass.MEASUREMENT,
         entity_category=EntityCategory.DIAGNOSTIC,
     ),
+    "co2": SensorEntityDescription(
+        key="co2",
+        name=None,
+        native_unit_of_measurement=CONCENTRATION_PARTS_PER_MILLION,
+        state_class=SensorStateClass.MEASUREMENT,
+        device_class=SensorDeviceClass.CO2,
+    ),
     "lightLevel": SensorEntityDescription(
         key="lightLevel",
         translation_key="light_level",
diff --git a/tests/components/switchbot/__init__.py b/tests/components/switchbot/__init__.py
index b2a8445546edbd..5752ec828d7e1b 100644
--- a/tests/components/switchbot/__init__.py
+++ b/tests/components/switchbot/__init__.py
@@ -205,3 +205,28 @@ async def init_integration(hass: HomeAssistant) -> MockConfigEntry:
     connectable=True,
     tx_power=-127,
 )
+
+
+WOMETERTHPC_SERVICE_INFO = BluetoothServiceInfoBleak(
+    name="WoTHPc",
+    manufacturer_data={
+        2409: b"\xb0\xe9\xfeT2\x15\xb7\xe4\x07\x9b\xa4\x007\x02\xd5\x00"
+    },
+    service_data={"0000fd3d-0000-1000-8000-00805f9b34fb": b"5\x00d"},
+    service_uuids=["cba20d00-224d-11e6-9fb8-0002a5d5c51b"],
+    address="aa:bb:cc:dd:ee:aa",
+    rssi=-60,
+    source="local",
+    advertisement=generate_advertisement_data(
+        local_name="WoTHPc",
+        manufacturer_data={
+            2409: b"\xb0\xe9\xfeT2\x15\xb7\xe4\x07\x9b\xa4\x007\x02\xd5\x00"
+        },
+        service_data={"0000fd3d-0000-1000-8000-00805f9b34fb": b"5\x00d"},
+        service_uuids=["cba20d00-224d-11e6-9fb8-0002a5d5c51b"],
+    ),
+    device=generate_ble_device("aa:bb:cc:dd:ee:aa", "WoTHPc"),
+    time=0,
+    connectable=True,
+    tx_power=-127,
+)
diff --git a/tests/components/switchbot/test_sensor.py b/tests/components/switchbot/test_sensor.py
index 030a477596c3ec..624a827e32c7b1 100644
--- a/tests/components/switchbot/test_sensor.py
+++ b/tests/components/switchbot/test_sensor.py
@@ -15,7 +15,7 @@
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
-from . import WOHAND_SERVICE_INFO
+from . import WOHAND_SERVICE_INFO, WOMETERTHPC_SERVICE_INFO
 
 from tests.common import MockConfigEntry
 from tests.components.bluetooth import inject_bluetooth_service_info
@@ -59,3 +59,43 @@ async def test_sensors(hass: HomeAssistant) -> None:
 
     assert await hass.config_entries.async_unload(entry.entry_id)
     await hass.async_block_till_done()
+
+
+@pytest.mark.usefixtures("entity_registry_enabled_by_default")
+async def test_co2_sensor(hass: HomeAssistant) -> None:
+    """Test setting up creates the co2 sensor for a WoTHPc."""
+    await async_setup_component(hass, DOMAIN, {})
+    inject_bluetooth_service_info(hass, WOMETERTHPC_SERVICE_INFO)
+
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        data={
+            CONF_ADDRESS: "aa:bb:cc:dd:ee:aa",
+            CONF_NAME: "test-name",
+            CONF_PASSWORD: "test-password",
+            CONF_SENSOR_TYPE: "bot",
+        },
+        unique_id="aabbccddeeaa",
+    )
+    entry.add_to_hass(hass)
+
+    assert await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert len(hass.states.async_all("sensor")) == 2
+
+    battery_sensor = hass.states.get("sensor.test_name_battery")
+    battery_sensor_attrs = battery_sensor.attributes
+    assert battery_sensor.state == "89"
+    assert battery_sensor_attrs[ATTR_FRIENDLY_NAME] == "test-name Battery"
+    assert battery_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "%"
+    assert battery_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    rssi_sensor = hass.states.get("sensor.test_name_bluetooth_signal")
+    rssi_sensor_attrs = rssi_sensor.attributes
+    assert rssi_sensor.state == "-60"
+    assert rssi_sensor_attrs[ATTR_FRIENDLY_NAME] == "test-name Bluetooth signal"
+    assert rssi_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "dBm"
+
+    assert await hass.config_entries.async_unload(entry.entry_id)
+    await hass.async_block_till_done()