diff --git a/simpeg/dask/__init__.py b/simpeg/dask/__init__.py
index 89fee4fcd9..f8aae06c9c 100644
--- a/simpeg/dask/__init__.py
+++ b/simpeg/dask/__init__.py
@@ -6,6 +6,7 @@
     import simpeg.dask.electromagnetics.static.induced_polarization.simulation
     import simpeg.dask.electromagnetics.static.induced_polarization.simulation_2d
     import simpeg.dask.electromagnetics.time_domain.simulation
+    import simpeg.dask.electromagnetics.time_domain.simulation_1d
     import simpeg.dask.potential_fields.base
     import simpeg.dask.potential_fields.gravity.simulation
     import simpeg.dask.potential_fields.magnetics.simulation
diff --git a/simpeg/dask/electromagnetics/time_domain/simulation_1d.py b/simpeg/dask/electromagnetics/time_domain/simulation_1d.py
new file mode 100644
index 0000000000..8eeb6058d2
--- /dev/null
+++ b/simpeg/dask/electromagnetics/time_domain/simulation_1d.py
@@ -0,0 +1,24 @@
+from ....electromagnetics.time_domain.simulation_1d import Simulation1DLayered as Sim
+
+from ...simulation import getJtJdiag, Jvec, Jtvec
+
+Sim._delete_on_model_update = ["_Jmatrix", "_jtjdiag", "_J"]
+
+
+@property
+def Jmatrix(self):
+    """
+    Sensitivity matrix stored on disk
+    Return the diagonal of JtJ
+    """
+    if getattr(self, "_Jmatrix", None) is None:
+        Jmat = self.getJ(self.model)
+        self._Jmatrix = Jmat["ds"]
+
+    return self._Jmatrix
+
+
+Sim.getJtJdiag = getJtJdiag
+Sim.Jvec = Jvec
+Sim.Jtvec = Jtvec
+Sim.Jmatrix = Jmatrix
diff --git a/simpeg/directives/_save_geoh5.py b/simpeg/directives/_save_geoh5.py
index f4ea2b134b..89c4575442 100644
--- a/simpeg/directives/_save_geoh5.py
+++ b/simpeg/directives/_save_geoh5.py
@@ -4,7 +4,7 @@
 from pathlib import Path
 
 import numpy as np
-
+from scipy.sparse import csc_matrix, csr_matrix
 from .directives import InversionDirective
 from simpeg.maps import IdentityMap
 
@@ -188,7 +188,12 @@ def transforms(self, funcs: list | tuple):
 
         for fun in funcs:
             if not any(
-                [isinstance(fun, (IdentityMap, np.ndarray, float)), callable(fun)]
+                [
+                    isinstance(
+                        fun, (IdentityMap, np.ndarray, csr_matrix, csc_matrix, float)
+                    ),
+                    callable(fun),
+                ]
             ):
                 raise TypeError(
                     "Input transformation must be of type"
@@ -212,7 +217,9 @@ def apply_transformations(self, prop: np.ndarray) -> np.ndarray:
         """
         prop = prop.flatten()
         for fun in self.transforms:
-            if isinstance(fun, (IdentityMap, np.ndarray, float)):
+            if isinstance(
+                fun, (IdentityMap, np.ndarray, csr_matrix, csc_matrix, float)
+            ):
                 prop = fun * prop
             else:
                 prop = fun(prop)