diff --git a/doc/src/internal/notes.md b/doc/src/internal/notes.md
index fee78f133..9d46d4d64 100644
--- a/doc/src/internal/notes.md
+++ b/doc/src/internal/notes.md
@@ -15,6 +15,16 @@ Additionally, the Pokit Meter includes the following undocumented service:
 
 * `831d0001-e98e-1fed-e73e-4bb7596f776e` - no idea.
 
+Also, the Pokit app contains references to the following UUIDs; these may or may not be BLE services.
+
+* `581a9e6a-d2f6-4d7b-b0d0-5bc3ed9b842e`
+* `5f330a08-8e76-4d5a-97fb-22e1807b1888`
+* `6e7a7953-3b41-4be5-8052-c93129fa1f35`
+* `b4a19bce-96cf-4915-9ba4-a19f4a042c8e`
+* `c999d155-c00a-4e8f-a056-cd9523ce39de`
+* `ef1b0821-b107-4cae-b17c-df1e99b1667a`
+* `f2259466-ac2a-40a9-bf23-f47666ae2b15`
+
 ## Qt Versions
 
 QtPokit requires Qt's support Bluetooth Low Energy, in Central mode.
diff --git a/include/qtpokit/deviceinfoservice.h b/include/qtpokit/deviceinfoservice.h
index 2016bdfa5..92fb01250 100644
--- a/include/qtpokit/deviceinfoservice.h
+++ b/include/qtpokit/deviceinfoservice.h
@@ -26,33 +26,33 @@ class QTPOKIT_EXPORT DeviceInfoService : public AbstractPokitService
 public:
     /// UUID of the "Device Info" service.
     static inline const QBluetoothUuid serviceUuid
-        { QBluetoothUuid::ServiceClassUuid::DeviceInformation };
+        { QBluetoothUuid::ServiceClassUuid::DeviceInformation }; // 0x180a
 
     /// Characteristics available via the `Device Info` service.
     struct QTPOKIT_EXPORT CharacteristicUuids {
         /// UUID of the `Device Info` service's `Manufacturer Name String` characterstic.
         static inline const QBluetoothUuid manufacturerName
-            { QBluetoothUuid::CharacteristicType::ManufacturerNameString };
+            { QBluetoothUuid::CharacteristicType::ManufacturerNameString }; // 0x2a29
 
         /// UUID of the `Device Info` service's `Model Number String` characterstic.
         static inline const QBluetoothUuid modelNumber
-            { QBluetoothUuid::CharacteristicType::ModelNumberString };
+            { QBluetoothUuid::CharacteristicType::ModelNumberString }; // 0x2a24
 
         /// UUID of the `Device Info` service's `Firmware Revision String` characterstic.
         static inline const QBluetoothUuid firmwareRevision
-            { QBluetoothUuid::CharacteristicType::FirmwareRevisionString };
+            { QBluetoothUuid::CharacteristicType::FirmwareRevisionString }; // 0x2a26
 
         /// UUID of the `Device Info` service's `Hardware Revision String` characterstic.
         static inline const QBluetoothUuid hardwareRevision
-            { QBluetoothUuid::CharacteristicType::HardwareRevisionString };
+            { QBluetoothUuid::CharacteristicType::HardwareRevisionString }; // 0x2a27
 
         /// UUID of the `Device Info` service's `Software Revision String` characterstic.
         static inline const QBluetoothUuid softwareRevision
-            { QBluetoothUuid::CharacteristicType::SoftwareRevisionString };
+            { QBluetoothUuid::CharacteristicType::SoftwareRevisionString }; // 0x2a28
 
         /// UUID of the `Device Info` service's `Serial Number String` characterstic.
         static inline const QBluetoothUuid serialNumber
-            { QBluetoothUuid::CharacteristicType::SerialNumberString };
+            { QBluetoothUuid::CharacteristicType::SerialNumberString }; // 0x2a25
     };
 
     DeviceInfoService(QLowEnergyController * const pokitDevice, QObject * parent = nullptr);
diff --git a/src/lib/abstractpokitservice.cpp b/src/lib/abstractpokitservice.cpp
index c6fd6ef09..eb80d15a7 100644
--- a/src/lib/abstractpokitservice.cpp
+++ b/src/lib/abstractpokitservice.cpp
@@ -337,7 +337,7 @@ bool AbstractPokitServicePrivate::enableCharacteristicNotificatons(const QBlueto
     }
 
     QLowEnergyDescriptor descriptor = characteristic.descriptor(
-        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration);
+        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration); // 0x2902
     if (!descriptor.isValid()) {
         qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" has no client configuration descriptor.)")
             .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));
@@ -372,7 +372,7 @@ bool AbstractPokitServicePrivate::disableCharacteristicNotificatons(const QBluet
     }
 
     QLowEnergyDescriptor descriptor = characteristic.descriptor(
-        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration);
+        QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration); // 0x2902
     if (!descriptor.isValid()) {
         qCWarning(lc).noquote() << tr(R"(Characteristic %1 "%2" has no client configuration descriptor.)")
             .arg(uuid.toString(), PokitDevice::charcteristicToString(uuid));