diff --git a/sf/test_sf_writer.py b/sf/test_sf_writer.py
new file mode 100644
index 0000000..054fd35
--- /dev/null
+++ b/sf/test_sf_writer.py
@@ -0,0 +1,70 @@
+import argparse
+
+from mflow import mflow, BIND, PUSH
+import numpy
+import requests
+
+
+def main():
+    parser = argparse.ArgumentParser(description='Generate SF detector test stream.')
+    parser.add_argument("-o", '--stream_address', default="tcp://127.0.0.1:8888", help="Address to bind the stream.")
+    parser.add_argument("-i", '--n_images', default=100, help="Number of images to generate.")
+    parser.add_argument('-m', '--n_modules', default=5, help="Number of modules to simulate.")
+
+    arguments = parser.parse_args()
+
+    stream_address = arguments.stream_address
+    n_images = arguments.n_images
+    n_modules = arguments.n_modules
+    shape = [n_modules * 512, 1024]
+    dtype = "uint16"
+
+    print("Use writer start command:")
+    print("\t./sf_h5_writer tcp://127.0.0.1:8888 test%d.h5 100 12000 -1 localhost 5 0 test_sf_writer.py 10")
+
+    writer_parameters_url = "http://localhost:12000/parameters"
+    writer_parameters = {
+        "general/created": "right now",
+        "general/user": "tester",
+        "general/process": "test_writer.py",
+        "general/instrument": "test script"
+    }
+
+    header = {
+        "pulse_id": 0,
+        "frame": 0,
+        "is_good_frame": 1,
+        "daq_rec": 1,
+        "shape": shape,
+        "type": dtype,
+
+        "pulse_id_diff": [1] * n_modules,
+        "framenum_diff": [1] * n_modules,
+        "missing_packets_1": [1] * n_modules,
+        "missing_packets_2": [1] * n_modules,
+        "daq_recs": [1] * n_modules,
+        "pulse_ids": [1] * n_modules,
+        "framenums": [1] * n_modules,
+        "module_number": [1] * n_modules,
+    }
+
+    image = numpy.random.rand(shape[0], shape[1]) * (2 ** 16)
+    image = image.astype(dtype)
+
+    stream = mflow.connect(address=stream_address, conn_type=BIND, mode=PUSH)
+
+    for pulse_id in range(n_images):
+        print("Sending pulse_id %d." % pulse_id)
+
+        header["pulse_id"] = pulse_id
+        header["frame"] = pulse_id
+
+        stream.send(header, send_more=True, as_json=True)
+        stream.send(image, send_more=False)
+
+        if pulse_id == 0:
+            requests.post(url=writer_parameters_url, json=writer_parameters)
+
+
+if __name__ == "__main__":
+    main()