diff --git a/ophyd_devices/epics/devices/sls_detector_baseclass.py b/ophyd_devices/epics/devices/sls_detector_baseclass.py
new file mode 100644
index 0000000..cad7310
--- /dev/null
+++ b/ophyd_devices/epics/devices/sls_detector_baseclass.py
@@ -0,0 +1,99 @@
+import enum
+from abc import ABC, abstractmethod
+
+from ophyd import Device
+from ophyd_devices.utils import bec_utils
+
+from bec_lib.bec_service import SERVICE_CONFIG
+from bec_lib.file_utils import FileWriterMixin
+from ophyd_devices.epics.devices.bec_scaninfo_mixin import BecScaninfoMixin
+
+
+# Define here a minimum readout time for the detector
+MIN_READOUT = None
+
+
+# Custom exceptions specific to detectors
+class CustomDetectorError(Exception):
+    """Class for custom detector errors.
+
+    Specifying different types of errors can be helpful and used
+    for error handling, e.g. scan repetitions.
+
+    An suggestion/example would be to have 3 class types for errors
+    EigerError, EigerTimeoutError(EigerError), EigerInitError(EigerError)
+    """
+
+    pass
+
+
+class SLSDetectorBase(ABC, Device):
+    """Abstract base class for SLS detectors"""
+
+    def __init____init__(
+        self,
+        prefix="",
+        *,
+        name,
+        kind=None,
+        read_attrs=None,
+        configuration_attrs=None,
+        parent=None,
+        device_manager=None,
+        sim_mode=False,
+        **kwargs,
+    ) -> None:
+        super().__init__(
+            prefix,
+            name=name,
+            kind=kind,
+            read_attrs=read_attrs,
+            configuration_attrs=configuration_attrs,
+            parent=parent,
+            device_manager=device_manager,
+            **kwargs,
+        )
+        if device_manager is None and not sim_mode:
+            raise CustomDetectorError(
+                f"No device manager for device: {name}, and not started sim_mode: {sim_mode}. Add DeviceManager to initialization or init with sim_mode=True"
+            )
+        self.sim_mode = sim_mode
+        # TODO check if threadlock is needed for unstage
+        self._stopped = False
+        self.name = name
+        self.service_cfg = None
+        self.std_client = None
+        self.scaninfo = None
+        self.filewriter = None
+        self.readout_time_min = MIN_READOUT
+        self.timeout = 5
+        self.wait_for_connection(all_signals=True)
+        if not self.sim_mode:
+            self._update_service_cfg()
+            self.device_manager = device_manager
+        else:
+            self.device_manager = bec_utils.DMMock()
+            base_path = kwargs["basepath"] if "basepath" in kwargs else "~/Data10/"
+            self.service_cfg = {"base_path": os.path.expanduser(base_path)}
+        self._producer = self.device_manager.producer
+        self._update_scaninfo()
+        self._update_filewriter()
+        self._init()
+
+    def _update_service_cfg(self) -> None:
+        """Update service configuration from BEC SERVICE CONFIG"""
+        self.service_cfg = SERVICE_CONFIG.config["service_config"]["file_writer"]
+
+    def _update_scaninfo(self) -> None:
+        """Update scaninfo from BecScaninfoMixing"""
+        self.scaninfo = BecScaninfoMixin(self.device_manager, self.sim_mode)
+        self.scaninfo.load_scan_metadata()
+
+    def _update_filewriter(self) -> None:
+        """Update filewriter with service config"""
+        self.filewriter = FileWriterMixin(self.service_cfg)
+
+    @abstractmethod
+    def _init(self):
+        """Initialize detector, filewriter and set default parameters"""
+        pass