Index: dialin/dg/uv_reactors.py
===================================================================
diff -u -rf053467ac7cfb9fe349e394342d3a9253a377403 -r56f06b55eb8ab96bd69d12eb9d9d5c71241755ad
--- dialin/dg/uv_reactors.py	(.../uv_reactors.py)	(revision f053467ac7cfb9fe349e394342d3a9253a377403)
+++ dialin/dg/uv_reactors.py	(.../uv_reactors.py)	(revision 56f06b55eb8ab96bd69d12eb9d9d5c71241755ad)
@@ -92,13 +92,13 @@
         @param message:  published thermistors message
         @return: none
         """
-        inlet_health = struct.unpack('f', bytearray(
+        inlet_health = struct.unpack('i', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0]
-        outlet_health = struct.unpack('f', bytearray(
+        outlet_health = struct.unpack('i', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_2:MsgFieldPositions.END_POS_FIELD_2]))[0]
-        inlet_state = struct.unpack('f', bytearray(
+        inlet_state = struct.unpack('i', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_3:MsgFieldPositions.END_POS_FIELD_3]))[0]
-        outlet_state = struct.unpack('f', bytearray(
+        outlet_state = struct.unpack('i', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0]
 
         self.inlet_uv_reactor_health = inlet_health
@@ -188,11 +188,13 @@
         @param: state: (int) the state of the inlet UV reactor. 0 for Off and 1 for On.
         @return: 1 if successful, zero otherwise
         """
+        rst = integer_to_bytearray(0)
+        inlet_uv_reactor_index = integer_to_bytearray(0)
         if state == ReactorsStates.UV_REACTOR_STATE_ON.name:
-            payload = integer_to_bytearray(1)
+            payload = rst + integer_to_bytearray(1) + inlet_uv_reactor_index
             operation = 'Turning on '
         else:
-            payload = integer_to_bytearray(0)
+            payload = rst + integer_to_bytearray(0) + inlet_uv_reactor_index
             operation = 'Turning off '
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dg_ch_id,
Index: tests/test_uv_reactors.py
===================================================================
diff -u
--- tests/test_uv_reactors.py	(revision 0)
+++ tests/test_uv_reactors.py	(revision 56f06b55eb8ab96bd69d12eb9d9d5c71241755ad)
@@ -0,0 +1,17 @@
+
+import sys
+sys.path.append("..")
+from dialin.dg.dialysate_generator import DG
+from dialin.dg.uv_reactors import ReactorsStates
+from time import sleep
+
+dg = DG(log_level='DEBUG')
+dg.cmd_log_in_to_dg()
+sleep(1)
+
+dg.uv_reactors.cmd_start_stop_inlet_uv_reactor(state=ReactorsStates.UV_REACTOR_STATE_ON.name)
+
+while True:
+
+    sleep(1)
+    print(dg.uv_reactors.inlet_uv_reactor_state, dg.uv_reactors.inlet_uv_reactor_health)