diff -r 70d0c3102424 -r 411b72b73d8f Hardware/Sensor.cs
--- a/Hardware/Sensor.cs	Thu May 06 19:20:38 2010 +0000
+++ b/Hardware/Sensor.cs	Sun May 09 16:22:13 2010 +0000
@@ -205,5 +205,14 @@
       public float Value { get { return value; } }
       public DateTime Time { get { return time; } }
     }
+
+    public void Accept(IVisitor visitor) {
+      visitor.VisitSensor(this);
+    }
+
+    public void Traverse(IVisitor visitor) {
+      foreach (IParameter parameter in parameters)
+        parameter.Accept(visitor);
+    }
   }
 }