diff --git a/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs b/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs
deleted file mode 100644
index 7ec7f5d8f8..0000000000
--- a/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs
+++ /dev/null
@@ -1,54 +0,0 @@
-namespace MLAgents.Sensors
-{
-    /// <summary>
-    /// A base sensor that provides a number default implementations.
-    /// </summary>
-    public abstract class SensorBase : ISensor
-    {
-        /// <summary>
-        /// Write the observations to the output buffer. This size of the buffer will be product
-        /// of the sizes returned by <see cref="GetObservationShape"/>.
-        /// </summary>
-        /// <param name="output"></param>
-        public abstract void WriteObservation(float[] output);
-
-        /// <inheritdoc/>
-        public abstract int[] GetObservationShape();
-
-        /// <inheritdoc/>
-        public abstract string GetName();
-
-        /// <summary>
-        /// Default implementation of Write interface. This creates a temporary array,
-        /// calls WriteObservation, and then writes the results to the WriteAdapter.
-        /// </summary>
-        /// <param name="adapter"></param>
-        /// <returns>The number of elements written.</returns>
-        public virtual int Write(WriteAdapter adapter)
-        {
-            // TODO reuse buffer for similar agents, don't call GetObservationShape()
-            var numFloats = this.ObservationSize();
-            float[] buffer = new float[numFloats];
-            WriteObservation(buffer);
-
-            adapter.AddRange(buffer);
-
-            return numFloats;
-        }
-
-        /// <inheritdoc/>
-        public void Update() {}
-
-        /// <inheritdoc/>
-        public virtual byte[] GetCompressedObservation()
-        {
-            return null;
-        }
-
-        /// <inheritdoc/>
-        public virtual SensorCompressionType GetCompressionType()
-        {
-            return SensorCompressionType.None;
-        }
-    }
-}
diff --git a/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs.meta b/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs.meta
deleted file mode 100644
index c724240207..0000000000
--- a/com.unity.ml-agents/Runtime/Sensors/SensorBase.cs.meta
+++ /dev/null
@@ -1,11 +0,0 @@
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-MonoImporter:
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-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
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