diff --git a/scos_actions/__init__.py b/scos_actions/__init__.py
index b2ea6c25..87c6f8ed 100644
--- a/scos_actions/__init__.py
+++ b/scos_actions/__init__.py
@@ -1 +1,2 @@
-__version__ = "7.0.2"
+__version__ = "7.1.0"
+
diff --git a/scos_actions/actions/acquire_sea_data_product.py b/scos_actions/actions/acquire_sea_data_product.py
index d956fbbf..17adb08c 100644
--- a/scos_actions/actions/acquire_sea_data_product.py
+++ b/scos_actions/actions/acquire_sea_data_product.py
@@ -666,7 +666,8 @@ def capture_diagnostics(self, action_start_tic: float, cpu_speeds: list) -> None
             start time, and SCOS uptime.
 
         Software versions: the OS platform, Python version, scos_actions
-            version, and preselector API version.
+            version, the preselector API version, the signal analyzer API
+            version, and the signal analyzer firmware version.
 
         The total action runtime is also recorded.
 
@@ -779,6 +780,8 @@ def capture_diagnostics(self, action_start_tic: float, cpu_speeds: list) -> None
                 name="scos_tekrsa", version=self.sigan.plugin_version
             ),
             "preselector_api_version": PRESELECTOR_API_VERSION,
+            "sigan_firmware_version": self.sigan.firmware_version,
+            "sigan_api_version": self.sigan.api_version,
         }
 
         toc = perf_counter()
diff --git a/scos_actions/hardware/mocks/mock_sigan.py b/scos_actions/hardware/mocks/mock_sigan.py
index 46b8f2ec..29942705 100644
--- a/scos_actions/hardware/mocks/mock_sigan.py
+++ b/scos_actions/hardware/mocks/mock_sigan.py
@@ -38,6 +38,8 @@ def __init__(self, randomize_values=False):
         self._capture_time = None
         self._is_available = True
         self._plugin_version = SCOS_ACTIONS_VERSION
+        self._firmware_version = "1.2.3"
+        self._api_version = "v1.2.3"
 
         # Simulate returning less than the requested number of samples from
         # self.recv_num_samps
@@ -55,6 +57,14 @@ def is_available(self):
     @property
     def plugin_version(self):
         return self._plugin_version
+    
+    @property
+    def firmware_version(self):
+        return self._firmware_version
+    
+    @property
+    def api_version(self):
+        return self._api_version
 
     @property
     def sample_rate(self):
diff --git a/scos_actions/hardware/sigan_iface.py b/scos_actions/hardware/sigan_iface.py
index a12c1d67..ee6a43e0 100644
--- a/scos_actions/hardware/sigan_iface.py
+++ b/scos_actions/hardware/sigan_iface.py
@@ -70,6 +70,16 @@ def plugin_version(self) -> str:
         """Returns the version of the SCOS plugin defining this interface."""
         pass
 
+    @property
+    def firmware_version(self) -> str:
+        """Returns the version of the signal analyzer firmware."""
+        return "Unknown"
+
+    @property
+    def api_version(self) -> str:
+        """Returns the version of the underlying signal analyzer API."""
+        return "Unknown"
+
     @abstractmethod
     def acquire_time_domain_samples(
         self,
diff --git a/scos_actions/metadata/structs/ntia_diagnostics.py b/scos_actions/metadata/structs/ntia_diagnostics.py
index 8c144299..def0cbd5 100644
--- a/scos_actions/metadata/structs/ntia_diagnostics.py
+++ b/scos_actions/metadata/structs/ntia_diagnostics.py
@@ -179,6 +179,8 @@ class Software(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     :param scos_sigan_plugin: `ScosPlugin` object describing the plugin which defines the
         signal analyzer interface.
     :param preselector_api_version: Version of the NTIA `preselector` package.
+    :param sigan_firmware_version: Version of the signal analyzer firmware.
+    :param sigan_api_version: Version of the signal analyzer API.
     """
 
     system_platform: Optional[str] = None
@@ -187,6 +189,8 @@ class Software(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     scos_actions_version: Optional[str] = None
     scos_sigan_plugin: Optional[ScosPlugin] = None
     preselector_api_version: Optional[str] = None
+    sigan_firmware_version: Optional[str] = None
+    sigan_api_version: Optional[str] = None
 
 
 class Diagnostics(msgspec.Struct, **SIGMF_OBJECT_KWARGS):