diff --git a/.gitignore b/.gitignore
index 4da140b..0cbacc1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,4 +18,4 @@ relPaths.sh
 *_info_settings.req
 *.py[cod]
 __pycache__/
-/system_tests/test-reports
\ No newline at end of file
+test-reports
\ No newline at end of file
diff --git a/system_tests/lewis_emulators/Measm905/device.py b/system_tests/lewis_emulators/Measm905/device.py
index 7cf7281..d76796a 100644
--- a/system_tests/lewis_emulators/Measm905/device.py
+++ b/system_tests/lewis_emulators/Measm905/device.py
@@ -1,7 +1,6 @@
 from collections import OrderedDict
 from .states import DefaultState
 from lewis.devices import StateMachineDevice
-import random
 
 
 
@@ -12,7 +11,7 @@ def _initialize_data(self):
         """
         Initialize all of the device's attributes.
         """
-        self._pressure = 1
+        self.pressure = 1
 
     def _get_state_handlers(self):
         return {
@@ -25,8 +24,4 @@ def _get_initial_state(self):
     def _get_transition_handlers(self):
         return OrderedDict([
         ])
-    
-    @property
-    def pressure(self):
-        return self._pressure
-    
\ No newline at end of file
+  
\ No newline at end of file
diff --git a/system_tests/tests/measm905.py b/system_tests/tests/measm905.py
index db1aa86..b6f7cde 100644
--- a/system_tests/tests/measm905.py
+++ b/system_tests/tests/measm905.py
@@ -19,7 +19,7 @@
 ]
 
 
-TEST_MODES = [TestModes.RECSIM, TestModes.DEVSIM]
+TEST_MODES = [TestModes.DEVSIM]
 
 
 class Measm905Tests(unittest.TestCase):
@@ -30,5 +30,7 @@ def setUp(self):
         self._lewis, self._ioc = get_running_lewis_and_ioc("Measm905", DEVICE_PREFIX)
         self.ca = ChannelAccess(device_prefix=DEVICE_PREFIX)
 
-    def test_that_fails(self):
-        self.fail("You haven't implemented any tests!")
+    @skip_if_recsim("In rec sim this test fails")
+    def test_WHEN_pressure_changes_THEN_pv_also_changes(self):
+        self._lewis.backdoor_set_on_device("pressure", 42)
+        self.ca.assert_that_pv_is("PRESSURE", 42)
\ No newline at end of file