diff --git a/boxtree/tools.py b/boxtree/tools.py
index 68ac5f430d8d9681a8e58208da17c88ffe6b4fe5..ec8af1b285720df993ea3ccb993ca775288c738b 100644
--- a/boxtree/tools.py
+++ b/boxtree/tools.py
@@ -324,6 +324,19 @@ class DeviceDataRecord(Record):
 
         return self._transform_arrays(try_with_queue)
 
+    def to_device(self, queue):
+        """ Return a copy of `self` in all :class:`numpy.ndarray` arrays are
+        transferred to device memory as :class:`pyopencl.array.Array` objects.
+        """
+
+        def _to_device(attr):
+            if isinstance(attr, np.ndarray):
+                return cl.array.to_device(queue, attr).with_queue(None)
+            else:
+                return attr
+
+        return self._transform_arrays(_to_device)
+
 # }}}
 
 
diff --git a/test/test_tools.py b/test/test_tools.py
new file mode 100644
index 0000000000000000000000000000000000000000..0a2f23e9a77b82c0c3e37c40117f1e71bf140152
--- /dev/null
+++ b/test/test_tools.py
@@ -0,0 +1,66 @@
+from __future__ import division, absolute_import, print_function
+import numpy as np
+import pyopencl as cl
+
+__copyright__ = "Copyright (C) 2012 Andreas Kloeckner \
+                 Copyright (C) 2018 Hao Gao"
+
+__license__ = """
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+"""
+
+
+def test_device_record():
+    from boxtree.tools import DeviceDataRecord
+
+    array = np.arange(60).reshape((3, 4, 5))
+
+    obj_array = np.empty((3,), dtype=object)
+    for i in range(3):
+        obj_array[i] = np.arange((i + 1) * 40).reshape(5, i + 1, 8)
+
+    record = DeviceDataRecord(
+        array=array,
+        obj_array=obj_array
+    )
+
+    ctx = cl.create_some_context()
+
+    with cl.CommandQueue(ctx) as queue:
+        record_dev = record.to_device(queue)
+        record_host = record_dev.get(queue)
+
+        assert np.array_equal(record_host.array, record.array)
+
+        for i in range(3):
+            assert np.array_equal(record_host.obj_array[i], record.obj_array[i])
+
+
+# You can test individual routines by typing
+# $ python test_tools.py 'test_routine'
+
+if __name__ == "__main__":
+    import sys
+    if len(sys.argv) > 1:
+        exec(sys.argv[1])
+    else:
+        from pytest import main
+        main([__file__])
+
+# vim: fdm=marker