diff --git a/pyproject.toml b/pyproject.toml
index 081007bce6..f6f1ab5dd2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ maintainers = [
 ]
 license = "Apache-2.0"
 readme = "README.md"
-requires-python = ">=3.12,<3.14"
+requires-python = ">=3.12,<3.15"
 dependencies = [
     "bleak >= 0.21",
     "bleak-retry-connector >= 3.5",
@@ -34,6 +34,7 @@ classifiers = [
   "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
 ]
 
 [project.urls]
diff --git a/src/pyftms/client/__init__.py b/src/pyftms/client/__init__.py
index 77a937a375..5f8588f601 100644
--- a/src/pyftms/client/__init__.py
+++ b/src/pyftms/client/__init__.py
@@ -6,10 +6,10 @@
 from collections.abc import AsyncIterator
 from typing import Any
 
-from bleak import BleakScanner
+from bleak import BleakClient, BleakScanner
 from bleak.backends.device import BLEDevice
 from bleak.backends.scanner import AdvertisementData
-from bleak.exc import BleakDeviceNotFoundError
+from bleak.exc import BleakError, BleakDeviceNotFoundError
 from bleak.uuids import normalize_uuid_str
 
 from .backends import (
@@ -32,6 +32,7 @@
     MachineType,
     MovementDirection,
     SettingRange,
+    get_machine_type_from_gatt,
     get_machine_type_from_service_data,
 )
 
@@ -97,22 +98,50 @@ async def discover_ftms_devices(
     """
 
     devices: set[str] = set()
-
-    async with BleakScanner(
-        service_uuids=[normalize_uuid_str(FTMS_UUID)],
-        kwargs=kwargs,
-    ) as scanner:
+    ftms_uuid = normalize_uuid_str(FTMS_UUID)
+
+    # Scan without a service_uuids filter: on Linux/BlueZ the hardware-level
+    # UUID filter only matches devices that include FTMS data in the service
+    # data field of their advertisement.  Some devices (e.g. Bodytone DU30)
+    # advertise the FTMS UUID in service_uuids but provide no service data, so
+    # they would be silently dropped.  We therefore scan for all BLE devices
+    # and filter manually.
+    async with BleakScanner(**kwargs) as scanner:
         try:
             async with asyncio.timeout(discover_time):
                 async for dev, adv in scanner.advertisement_data():
                     if dev.address in devices:
                         continue
 
+                    # Quick pre-filter: skip devices that have no FTMS UUID
+                    # in either service_data or service_uuids.
+                    if ftms_uuid not in adv.service_data and ftms_uuid not in (
+                        adv.service_uuids or ()
+                    ):
+                        continue
+
                     try:
                         machine_type = get_machine_type_from_service_data(adv)
 
                     except NotFitnessMachineError:
-                        continue
+                        # The device advertises the FTMS service UUID but does
+                        # not include machine type in its service data (e.g.
+                        # Bodytone DU30). Fall back to GATT characteristic
+                        # inspection by briefly connecting to the device.
+                        try:
+                            async with BleakClient(
+                                dev, services=[FTMS_UUID]
+                            ) as cli:
+                                machine_type = await get_machine_type_from_gatt(
+                                    cli
+                                )
+                        except (BleakError, NotFitnessMachineError, OSError):
+                            _LOGGER.debug(
+                                "Could not determine machine type for '%s' "
+                                "via GATT fallback.",
+                                dev.address,
+                            )
+                            continue
 
                     devices.add(dev.address)
 
diff --git a/src/pyftms/client/properties/__init__.py b/src/pyftms/client/properties/__init__.py
index bd4a3d3b1f..ba0f189516 100644
--- a/src/pyftms/client/properties/__init__.py
+++ b/src/pyftms/client/properties/__init__.py
@@ -9,10 +9,15 @@
     SettingRange,
     read_features,
 )
-from .machine_type import MachineType, get_machine_type_from_service_data
+from .machine_type import (
+  MachineType,
+  get_machine_type_from_gatt,
+  get_machine_type_from_service_data
+)
 
 __all__ = [
     "DeviceInfo",
+    "get_machine_type_from_gatt",
     "get_machine_type_from_service_data",
     "MachineFeatures",
     "MachineSettings",
diff --git a/src/pyftms/client/properties/machine_type.py b/src/pyftms/client/properties/machine_type.py
index bbb2eb20bd..7a3d55527e 100644
--- a/src/pyftms/client/properties/machine_type.py
+++ b/src/pyftms/client/properties/machine_type.py
@@ -5,10 +5,17 @@
 import operator
 from enum import Flag, auto
 
+from bleak import BleakClient
 from bleak.backends.scanner import AdvertisementData
 from bleak.uuids import normalize_uuid_str
 
-from ..const import FTMS_UUID
+from ..const import (
+    CROSS_TRAINER_DATA_UUID,
+    FTMS_UUID,
+    INDOOR_BIKE_DATA_UUID,
+    ROWER_DATA_UUID,
+    TREADMILL_DATA_UUID,
+)
 from ..errors import NotFitnessMachineError
 
 
@@ -79,3 +86,31 @@ def get_machine_type_from_service_data(
         return mt
 
     raise NotFitnessMachineError(data)
+
+
+async def get_machine_type_from_gatt(cli: BleakClient) -> MachineType:
+    """Determines fitness machine type from connected GATT characteristics.
+
+    Used as a fallback when the device advertises the FTMS service UUID but
+    does not include machine type information in its advertisement service data
+    (e.g. Bodytone DU30).
+
+    Parameters:
+        cli: Connected `BleakClient` instance with FTMS service discovered.
+
+    Returns:
+        Fitness machine type.
+    """
+
+    _UUID_TO_TYPE = (
+        (TREADMILL_DATA_UUID, MachineType.TREADMILL),
+        (CROSS_TRAINER_DATA_UUID, MachineType.CROSS_TRAINER),
+        (ROWER_DATA_UUID, MachineType.ROWER),
+        (INDOOR_BIKE_DATA_UUID, MachineType.INDOOR_BIKE),
+    )
+
+    for uuid, machine_type in _UUID_TO_TYPE:
+        if cli.services.get_characteristic(uuid) is not None:
+            return machine_type
+
+    raise NotFitnessMachineError()