diff --git a/Tcmp-SDK/Properties/AssemblyInfo.cs b/Tcmp-SDK/Properties/AssemblyInfo.cs
index 3b3bb33..05d72de 100644
--- a/Tcmp-SDK/Properties/AssemblyInfo.cs
+++ b/Tcmp-SDK/Properties/AssemblyInfo.cs
@@ -10,7 +10,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("TapTrack")]
 [assembly: AssemblyProduct("TapTrack.Tcmp")]
-[assembly: AssemblyCopyright("Copyright ©  2017")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
 [assembly: AssemblyTrademark("TapTrack")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.8.0.0")]
-[assembly: AssemblyFileVersion("0.8.0.0")]
+[assembly: AssemblyVersion("0.9.0.0")]
+[assembly: AssemblyFileVersion("0.9.0.0")]
diff --git a/Tcmp-SDK/TapTrack.Tcmp.csproj b/Tcmp-SDK/TapTrack.Tcmp.csproj
index f8a1641..dc7fa76 100644
--- a/Tcmp-SDK/TapTrack.Tcmp.csproj
+++ b/Tcmp-SDK/TapTrack.Tcmp.csproj
@@ -86,6 +86,7 @@
     <Compile Include="Tcmp\CommandFamilies\System\ConfigureKioskKeyboardWedgeMode.cs" />
     <Compile Include="Tcmp\CommandFamilies\System\ConfigureSetting.cs" />
     <Compile Include="Tcmp\CommandFamilies\System\EnableDataThrottling.cs" />
+    <Compile Include="Tcmp\CommandFamilies\System\IndicatorCommand.cs" />
     <Compile Include="Tcmp\CommandFamilies\System\SetType2TagIdentification.cs" />
     <Compile Include="Tcmp\CommandFamilies\Type4\DetectType4B.cs" />
     <Compile Include="Tcmp\CommandFamilies\Type4\DetectType4A.cs" />
diff --git a/Tcmp-SDK/Tcmp/CommandFamilies/System/IndicatorCommand.cs b/Tcmp-SDK/Tcmp/CommandFamilies/System/IndicatorCommand.cs
new file mode 100644
index 0000000..1287fbb
--- /dev/null
+++ b/Tcmp-SDK/Tcmp/CommandFamilies/System/IndicatorCommand.cs
@@ -0,0 +1,164 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using TapTrack.Tcmp.Communication;
+
+namespace TapTrack.Tcmp.CommandFamilies.System
+{
+    /// <summary>
+    /// Represents an indicator present on a <see cref="TappyReader"/>.
+    /// </summary>
+    public enum IndicatorOption
+    {
+        /// <summary>
+        /// The red LED.
+        /// </summary>
+        RedLed,
+
+        /// <summary>
+        /// The green LED.
+        /// </summary>
+        GreenLed,
+
+        /// <summary>
+        /// The blue LED.
+        /// </summary>
+        BlueLed,
+
+        /// <summary>
+        /// The buzzer.
+        /// </summary>
+        Buzzer
+    }
+
+    /// <summary>
+    /// Represents a command to modify the state of an indicator.
+    /// See <see cref="IndicatorOption"/> for available options.
+    /// </summary>
+    public abstract class IndicatorCommand : SystemCommand
+    {
+        /// <summary>
+        /// The command code for this IndicatorCommand.
+        /// </summary>
+        public abstract override byte CommandCode { get; }
+
+        /// <summary>
+        /// The target indicator.
+        /// </summary>
+        public abstract IndicatorOption Option { get; }
+    }
+
+    /// <summary>
+    /// Represents a command to activate (turn on) an indicator.
+    /// </summary>
+    public sealed class ActivateIndicator : IndicatorCommand
+    {
+        /// <inheritdoc cref="IndicatorCommand.CommandCode"/>
+        public override byte CommandCode { get; }
+
+        /// <inheritdoc cref="IndicatorCommand.Option"/>
+        public override IndicatorOption Option { get; }
+
+        /// <summary>
+        /// The amount of time (in milliseconds) to keep the indicator activated. 
+        /// </summary>
+        public UInt16 Duration { get; }
+
+        /// <summary>
+        /// Constructs an <see cref="ActivateIndicator"/> command that will activate the
+        /// specified <see cref="IndicatorOption"/> for an optional amount of time.
+        /// </summary>
+        /// <param name="option">The <see cref="IndicatorOption"/> to activate.</param>
+        /// <param name="duration">
+        /// The amount of time (in milliseconds) to keep the indicator
+        /// activated. A duration of `0` implies activation until a
+        /// <see cref="DeactivateIndicator"/> command is sent.
+        /// </param>
+        public ActivateIndicator(IndicatorOption option, UInt16 duration = 0)
+        {
+            Option = option;
+            Duration = (UInt16)duration;
+
+            switch (option)
+            {
+                case IndicatorOption.RedLed:
+                {
+                    CommandCode = 0x0A;
+                    break;
+                }
+                case IndicatorOption.GreenLed:
+                {
+                    CommandCode = 0x0D;
+                    break;
+                }
+                case IndicatorOption.BlueLed:
+                {
+                    CommandCode = 0x10;
+                    break;
+                }
+                case IndicatorOption.Buzzer:
+                {
+                    CommandCode = 0x13;
+                    break;
+                }
+                default:
+                    throw new NotImplementedException($"case {option} is not implemented");
+            }
+
+            if (Duration == 0) return;
+
+            // Duration is > 0, so modify command code and add as parameter
+            // TODO: Hard-coding this is not the most flexible solution
+            CommandCode += 0x02;
+            IEnumerable<byte> durationBytes = BitConverter.GetBytes(Duration).Reverse();
+            parameters.AddRange(durationBytes);
+        }
+    }
+
+    /// <summary>
+    /// Represents a command to deactivate (turn off) an indicator.
+    /// </summary>
+    public sealed class DeactivateIndicator : IndicatorCommand
+    {
+        /// <inheritdoc cref="IndicatorCommand.CommandCode"/>
+        public override byte CommandCode { get; }
+
+        /// <inheritdoc cref="IndicatorCommand.Option"/>
+        public override IndicatorOption Option { get; }
+
+        /// <summary>
+        /// Constructs a <see cref="DeactivateIndicator"/> command that will deactivate
+        /// the specified <see cref="IndicatorOption"/>.
+        /// </summary>
+        /// <param name="option">The <see cref="IndicatorOption"/> to deactivate.</param>
+        public DeactivateIndicator(IndicatorOption option)
+        {
+            Option = option;
+            switch (option)
+            {
+                case IndicatorOption.RedLed:
+                {
+                    CommandCode = 0x0B;
+                    break;
+                }
+                case IndicatorOption.GreenLed:
+                {
+                    CommandCode = 0x0E;
+                    break;
+                }
+                case IndicatorOption.BlueLed:
+                {
+                    CommandCode = 0x11;
+                    break;
+                }
+                case IndicatorOption.Buzzer:
+                {
+                    CommandCode = 0x13;
+                    break;
+                }
+                default:
+                    throw new NotImplementedException($"case {option} is not implemented");
+            }
+        }
+    }
+}